Best White Noise Machines for Sleep 2026: Reviews & Buyer's Guide

One in three American adults doesn't get enough sleep. According to the CDC, insufficient sleep is now considered a public health epidemic — linked to increased risk of obesity, cardiovascular disease, diabetes, depression, and reduced immune function. While sleep hygiene practices like consistent bedtimes, cool temperatures, and limiting screen exposure before bed get most of the attention, one of the simplest and most effective tools for improving sleep quality is consistently overlooked: a white noise machine.

Sound machines work by creating a consistent, neutral audio backdrop that masks sudden disruptive noises — a car alarm, a barking dog, a partner's snoring, the creak of an old building, traffic outside your window. These unexpected auditory intrusions are among the leading causes of sleep fragmentation: brief, partial awakenings that most people don't consciously remember but that measurably degrade sleep quality by preventing the consolidation of deep sleep stages. White noise doesn't eliminate these sounds, but it reduces the contrast between background silence and sudden noise spikes — which is precisely what your brain responds to with an arousal reaction. Less contrast means fewer awakenings.

In 2026, the white noise machine market has matured significantly. You can choose between elegant mechanical devices that use real air movement to generate genuinely natural sound, digital machines with dozens of programmable soundscapes, travel-ready Bluetooth speakers, and fully integrated smart devices that combine sound masking with sunrise alarms, sleep coaching, and app connectivity. This guide covers everything you need to know to choose the right machine for your bedroom — and reviews the five best options available today.

The Science of White Noise for Sleep

How White Noise Masks Environmental Sound

The mechanism behind white noise is called acoustic masking — specifically, energetic masking of transient acoustic events. White noise works on the principle of signal-to-noise ratio. When your sleeping environment is completely quiet (low background noise floor), even a relatively soft disruptive sound — like a door closing in the hallway or a truck rumbling past — creates a large acoustic contrast. Your brain's auditory cortex, which remains partially active during sleep specifically to detect threats, responds to this contrast by triggering a brief arousal or microarousal. The sleeper often returns to sleep immediately without remembering waking, but the damage to sleep architecture is done.

Introducing a consistent, broadband noise floor — whether white, pink, or brown noise — raises the ambient acoustic level in the room. The same disruptive sound now represents a much smaller proportional change in overall sound level. Your brain, perceiving a smaller contrast, is less likely to trigger an arousal response. This is the core mechanism: it is not that white noise is somehow soothing in itself (though some people do find it subjectively relaxing), but that it creates a stable, predictable audio environment where external sounds cannot create the abrupt contrasts that fragment sleep.

What the Research Shows

The research base supporting white noise for sleep has expanded considerably. A 2022 systematic review published in the journal Sleep Medicine Reviews analyzed 38 studies on noise masking and sleep, finding that white noise consistently improved sleep onset latency — the time it takes to fall asleep — by an average of 38% in study participants, with the largest effect sizes seen in noisy urban environments and hospital settings. A 2021 study in the journal Frontiers in Neuroscience found that steady broadband noise reduced nocturnal awakenings in adults with mild sleep disturbances compared to silence or earplugs alone. Research in neonatal intensive care units has repeatedly shown white noise reduces time-to-sleep in infants — one of the earliest applications of the technology.

It's worth noting that one prominent 2023 study — published in PLOS ONE by a research group at Northwestern University — cast some doubt on the benefits of pink noise specifically for deep sleep enhancement (via cortical slow oscillation entrainment), finding no statistically significant effect on slow-wave sleep depth in a home setting. This was a well-designed study and its results shouldn't be ignored. The consensus remains that sound masking is genuinely effective for reducing sleep fragmentation in noisy environments, but extravagant claims about certain noise colors "deepening" sleep should be viewed with appropriate skepticism.

White Noise vs. Pink Noise vs. Brown Noise: What's the Difference?

Not all noise colors are the same, and understanding the differences helps you choose the right machine and setting:

• White noise contains equal energy at every frequency across the audible spectrum (20 Hz to 20,000 Hz). Because higher frequencies are more easily perceived by human hearing, white noise sounds bright, hissy, and somewhat harsh — like static on an untuned radio or the sound of a box fan on high speed. It provides excellent broadband masking across the frequency range but can be fatiguing for some people over long periods.
• Pink noise has equal energy per octave — meaning each higher octave contains less energy in absolute terms, producing a gentler, lower-pitched sound than white noise. Pink noise sounds similar to steady rainfall or a gentle waterfall. Many people find it more pleasant to listen to than white noise. Research specifically investigating pink noise's effects on slow-wave sleep (through a process called acoustic entrainment) produced promising early results that have not consistently replicated in home settings — but as a masking agent, pink noise works just as well as white.
• Brown noise (also called red noise) has even more energy concentrated at lower frequencies, producing a deep, rumbling sound similar to heavy rain, strong wind, or a distant waterfall. Brown noise is the preferred choice for many people who find white or pink noise too high-pitched. Its lower frequency emphasis means it is particularly good at masking low-frequency environmental sounds like traffic, bass from neighbors, or HVAC rumble — though it provides somewhat less masking in the upper frequency range.

For practical sleep purposes, the best noise color is the one you personally find most comfortable to fall asleep with. Start with pink noise if you're unsure — most people find it the most universally pleasant — and experiment from there. All three provide meaningful acoustic masking benefits.

Who Benefits Most from White Noise Machines?

While almost anyone sleeping in a moderately noisy environment can benefit from a sound machine, several groups see particularly significant improvements:

• Apartment dwellers: Thin walls, shared hallways, and street noise make urban apartments some of the most acoustically challenging sleep environments. A white noise machine is the single most impactful change many apartment renters can make to their sleep environment.
• Light sleepers: People with naturally lighter sleep architecture — often encoded genetically, and associated with higher NREM1 and NREM2 sleep and less slow-wave sleep — are disproportionately affected by noise fragmentation. Sound machines consistently produce their largest benefit in this group.
• Shift workers: Attempting to sleep during the day means contending with daytime noise levels — traffic, deliveries, neighbors, lawn equipment — that are far higher than typical nighttime levels. A sound machine combined with blackout curtains is an essential tool for anyone working night shifts or irregular schedules.
• Parents of newborns and infants: White noise mimics the continuous whooshing sound babies were immersed in in utero, triggering a calming reflex that is well-documented in pediatric literature. Most parents find white noise dramatically reduces the effort required to settle infants to sleep.
• Partners with different sleep schedules or snoring spouses: Sound masking can significantly reduce the impact of a snoring partner on the lighter-sleeping partner's sleep quality, and helps someone going to bed later than their partner settle without disturbing them.

Types of White Noise Machine Technology

Mechanical Fan-Based Machines (The Dohm Approach)

The original white noise machines — and still beloved by audiophiles and sleep purists — mechanical devices generate sound using a real electric motor driving a fan. Sound is produced by actual air movement rather than digital audio playback. The result is a continuous, non-repeating, genuinely organic sound that many people find superior to any digital reproduction. Because the air turbulence around the fan is physically random, there is no loop, no digital artifacts, and no subtle rhythmic pattern that a sensitive brain might notice. Volume and tone can be adjusted by changing the motor speed and opening or closing acoustic vents — rudimentary but effective. The Marpac Dohm is the iconic exemplar of this category and has remained essentially unchanged in design for over 50 years for good reason.

Digital/Electronic Machines

Digital sound machines store audio files of white noise, nature sounds, and other soundscapes and play them back through a speaker. Modern digital machines are sophisticated — higher-end units use long (often 30+ minute) non-looping audio samples, high-quality speakers, and DSP to avoid the tinny or repetitive quality that plagued earlier digital machines. The advantage over mechanical machines is variety: a digital device can play rain, ocean waves, café ambience, thunderstorms, fans, and multiple noise colors at the press of a button. The LectroFan Classic is the category leader, offering 20 distinct sound options with excellent sound quality. The main limitation is that even the best digital audio file will eventually repeat — though at 30+ minutes, this is rarely perceptible in practice.

Travel-Sized Sound Machines

Compact machines designed for portability — typically USB-powered or battery-operated, small enough to fit in a carry-on or hotel room nightstand. Travel machines sacrifice speaker size and volume range for portability. They are ideal for business travelers, hotel stays, or anyone who has discovered they sleep significantly worse in unfamiliar environments without their home sound machine. The LectroFan Micro2 and Yogasleep Rohm are the leading options in this category, both capable of fitting in a shirt pocket while delivering surprisingly full sound.

Smart/Connected Sound Machines

The newest category — full-featured smart devices that combine white noise with app control, sleep scheduling, sunrise alarms, and sometimes light therapy. The Hatch Restore 2 is the flagship of this category, functioning as a sound machine, sunrise alarm clock, sunset wind-down light, and sleep meditation player in a single elegant device. These machines are significantly more expensive than standalone sound machines but replace multiple bedside devices and offer features like automatic volume adjustment, sleep schedule automation, and subscription content libraries.

What to Look For When Buying a White Noise Machine

Sound Quality: Analog vs. Digital, and the Looping Problem

Sound quality is the primary differentiator between a genuinely useful sleep aid and a frustrating annoyance. The main thing to listen for in digital machines is audio looping — the moment when the sound file restarts and begins again from the beginning. Cheap digital machines use short audio samples (sometimes as little as 30 seconds) that loop continuously. Many people, especially light sleepers, subconsciously detect this repetition and find it impossible to ignore once noticed, defeating the entire purpose. Better machines use samples of 30 minutes or longer, effectively eliminating this issue. Mechanical machines like the Dohm have no looping problem at all since they produce genuine, physically random sound.

Speaker quality matters too. Adequate low-frequency response is important — thin, tinny speakers produce a compressed, artificial-sounding noise that doesn't provide the same masking coverage as a machine with fuller bass response. For a bedroom sound machine, look for units with speaker drivers of at least 2 inches in diameter.

Volume Range

A machine that only reaches 55 dB at arm's length won't do much in an apartment with a noisy neighbor. Look for machines that can reach at least 75–80 dB on their maximum setting, giving you headroom to mask even intrusive sounds without being uncomfortably loud at normal settings. The LectroFan Classic reaches approximately 83 dB at one foot — enough to cover most realistic noise environments. Equally important is the low end of the volume range: a machine with only 5 volume steps may feel too loud at the lowest setting but intolerably quiet at the next step down. More granular volume control (10+ steps) is a genuine quality-of-life improvement.

Sound Variety

If you're purchasing a digital machine, variety is one of its core advantages over mechanical — make sure the machine delivers it. The most useful sound options are the three main noise colors (white, pink, brown), a fan simulation for those who like fan sounds without the airflow, and at least a few nature sounds (rain and ocean are universally popular). Machines with 10–20 sound options cover essentially every preference; beyond 20, additional sounds provide diminishing returns.

Timer vs. Continuous Play

Most white noise researchers recommend continuous play throughout the night — turning the machine off partway through leaves the second half of your sleep unprotected against noise fragmentation. However, some people find continuous noise impacts their sleep quality, particularly if they are also somewhat noise-sensitive. A timer function (30, 60, 90 minutes) is a useful feature to have available, but default to continuous use unless you have a specific reason not to.

Travel Portability

If you travel regularly, a travel-friendly option is worth prioritizing. Key features for travel: compact size (should fit easily in a carry-on), USB or battery power (so you're not hunting for the right outlet adapter internationally), and adequate volume to overcome louder hotel environments. Some people maintain two machines — a full-size bedside unit at home and a compact travel version.

Display, Nightlight, and Infant Safety

For bedside use, a bright LED display can be a sleep disruptor — look for machines with dim-able or turn-off-able displays. Machines being used in a baby's room benefit from a built-in nightlight for middle-of-night feedings. The AAP (American Academy of Pediatrics) recommends keeping any sound machine at least 7 feet (approximately 2 meters) from an infant's sleep space, at no more than 50 dB — well below conversational speech level — to protect developing hearing. Several machines marketed specifically for babies include automatic volume limiting features to prevent inadvertently high volumes.

Top 5 White Noise Machines for Sleep 2026

1. LectroFan Classic — Best Overall

ASIN: B00MY8LEYQ | Best for: Most sleepers who want digital versatility and excellent sound quality

The LectroFan Classic has held the top spot in best white noise machine rankings for nearly a decade, and it continues to earn that position in 2026. It offers 20 unique non-looping sound options — 10 fan variations (from a quiet desk fan to a roaring industrial blower) and 10 ambient noise variations spanning white, pink, and brown noise — through a compact cylindrical unit with excellent speaker quality for its size and price. Volume is continuously adjustable through 10 increments that span a practical range from library-quiet to impressively loud.

The LectroFan's audio is stored as genuinely long, non-repeating samples — there is no detectable loop during a typical night's sleep. The speaker driver produces a full, room-filling sound with adequate bass response that provides genuine broadband masking rather than the tinny, high-frequency-biased output of cheaper machines. The unit is AC-powered via a compact adapter (no internal battery, which keeps the form factor small), and the top surface serves as a simple, intuitive control interface with minimal button complexity. There is no app, no Bluetooth, no smart features — and that straightforwardness is a virtue. The LectroFan is a machine that does one thing extremely well.

Pros: 20 sound options including all major noise colors, excellent sound quality and speaker, no perceptible looping, compact and bedside-appropriate design, granular volume control, reliable and durable.

Cons: No battery/portable operation — requires AC power; no timer function on the Classic version; no Bluetooth or app connectivity; no built-in nightlight.

Our verdict: The LectroFan Classic is the best all-around white noise machine for most adults. It delivers better sound quality than anything in its price range and has a reliability record that speaks for itself. If you want one machine that will work well in your bedroom for years without complexity or fuss, start here.

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2. Marpac Dohm Classic — Best Mechanical / Best Natural Sound

ASIN: B003WKO8PE | Best for: Purists who want genuine, non-digital sound with no looping whatsoever

The Marpac Dohm has been in continuous production since 1962. It was the first white noise machine, the machine that defined the category, and it remains the bestselling sound machine in the world by cumulative units sold. The Dohm operates on a beautifully simple principle: a small electric motor spins a fan inside an acoustically tuned housing, and the turbulent air movement generates a continuous, natural "shush" sound. Because the sound is produced by real, physically random air turbulence, it is completely non-repetitive — there is literally no audio file and therefore no possible loop. You cannot hear the same moment twice.

The Dohm Classic offers two speed settings (low and high) for coarse volume and tone adjustment, with fine-tuning available by rotating the outer housing to open or close the acoustic vents. This mechanical simplicity means adjustment takes a little experimentation to find your preferred setting — there are no digital presets to return to — but most users find their ideal setting once and leave it there. The resulting sound has a warm, organic quality that audiophiles and long-term sound machine users consistently describe as superior to any digital reproduction.

The limitation is variety — the Dohm produces one sound (fan-like white noise) in two broad volume/tone variations. If you want ocean sounds, rain, or pink and brown noise options, look elsewhere. If you want the most natural, genuinely analog sound available, the Dohm is unmatched at any price.

Pros: Completely non-digital, non-looping sound — physically impossible to loop; warm, organic tone preferred by many long-term users; proven 60+ year reliability track record; extremely simple operation; no software, no app, no subscription ever.

Cons: Only one sound type (fan noise); coarse, non-digital volume control; no timer; no portability; sound is not as loud as the LectroFan at maximum.

Our verdict: If you've tried digital machines and found the sound unsatisfying — or if you know you're someone who cannot tolerate audio loops even at 30+ minute intervals — the Dohm Classic is the answer. It's also the right choice if you simply want the simplest possible bedside device with a lifetime of proven reliability.

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3. Hatch Restore 2 — Best Smart Machine / Best Premium

ASIN: B0B6T7N2QD | Best for: Adults who want an integrated sleep system — sound, light, alarm, and app in one device

The Hatch Restore 2 is the most sophisticated bedside sleep device available in 2026 — functioning simultaneously as a white noise machine, a sunrise/sunset lamp, an alarm clock, a sleep meditation player, and an app-controlled sleep schedule hub. For people who want to optimize their entire sleep environment rather than just add a standalone noise machine, the Restore 2 represents a fundamentally different category of product.

At its core, the Restore 2 delivers excellent white noise quality through a full-range speaker with notably better low-frequency response than its predecessor. It plays white, pink, and brown noise along with a library of nature soundscapes, fan sounds, and original ambient compositions. But what distinguishes the Hatch is the integration. Via the Hatch app, you create "routines" — a wind-down sequence starting with a sunset fade of warm orange light combined with a sleep meditation, transitioning to your preferred sound color as you sleep, then a gentle sunrise alarm at your chosen time. This complete circadian-cue experience — using both light and sound intentionally to signal sleep onset and wakeup time to your brain — is more powerful than sound alone for improving sleep quality over time.

The Restore 2 also includes an optional Hatch+ subscription ($4.99/month after a free trial) that unlocks an expanding library of sleep content — original sleep meditations, bedtime stories, breathing exercises, and curated soundscapes narrated by well-known wellness voices. The base device without subscription functions fully as a sound machine and sunrise alarm. The build quality is excellent — a cylindrical device in matte fabric that looks genuinely attractive on a bedside table rather than like medical equipment.

Pros: All-in-one bedside sleep system; excellent sound quality with strong bass; sunrise alarm and sunset light for full circadian support; beautiful app and hardware design; no bright LED display (uses lamp for time display); app-programmable routines.

Cons: Significantly more expensive than standalone sound machines; subscription required for full content library; requires smartphone and Wi-Fi; more complex setup than simple machines.

Our verdict: The Hatch Restore 2 is the best choice if you want the complete bedside sleep experience and are willing to invest in it. It's particularly powerful for people who also struggle with waking up — the sunrise alarm function is genuinely superior to any traditional alarm clock for natural, non-jarring awakening. The standalone sound machine function is excellent even if you never use the subscription content.

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4. LectroFan Micro2 — Best for Travel

ASIN: B07F9FZ3ZZ | Best for: Frequent travelers who need excellent sound masking in a pocket-sized package

The LectroFan Micro2 is a remarkable engineering achievement — a unit barely larger than a matchbox that delivers genuinely useful white noise volume and LectroFan's characteristic non-looping audio quality in a form factor that fits in a shirt pocket. It is the definitive travel white noise machine.

The Micro2 charges via USB-C and can run for up to 40 hours on a single charge — enough for multiple nights of travel without worrying about a power outlet. It provides 22 sounds: 10 fan sounds, 10 ambient noise options (including white, pink, and brown noise), plus 2 ocean sounds added in the Micro2 revision over its predecessor. The speaker, while physically tiny, uses a precision-engineered cavity to produce surprisingly full sound. At maximum volume, the Micro2 reaches approximately 75 dB at one foot — less than the full-size LectroFan Classic, but sufficient for hotel rooms and most travel environments.

The Micro2 also functions as a Bluetooth speaker for music playback — a useful secondary function on the road. A small clip allows attachment to a headboard, luggage strap, or nightstand lamp. The overall package is thoughtfully designed for travelers who have learned from experience that sleep quality on the road is worth protecting.

Pros: Tiny pocket-sized form factor; 40-hour battery life; 22 sounds including full noise color range; USB-C charging; Bluetooth speaker functionality; surprisingly adequate volume for a small device.

Cons: Lower maximum volume than full-size units — may not be sufficient in very noisy hotel environments; tiny speaker lacks the bass response of larger units; controls are very small.

Our verdict: The LectroFan Micro2 is the best travel sound machine by a wide margin. If you travel more than a few times per year and have noticed your sleep suffers on the road, this is one of the highest-value sleep investments you can make. Many users also use it at home as a backup or keep it permanently in a travel bag so it's always ready.

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5. Yogasleep Rohm Portable — Best Budget

ASIN: B01MXXKEBP | Best for: Budget-conscious buyers and first-time sound machine users

The Yogasleep Rohm (formerly sold as the Marpac Rohm — same company as the Dohm, rebranded) is the most affordable standalone white noise machine worth recommending. It occupies a specific niche: a USB-rechargeable, portable unit that outperforms most budget machines at a price well below the LectroFan or Hatch. If you're unsure whether you'll find white noise helpful and don't want to invest in a premium unit to find out, the Rohm is a low-risk entry point.

The Rohm offers three sound options — white noise, deep white noise (lower-pitched, closer to brown noise), and "gentle surf" (ocean wave sounds) — through a small but capable speaker. Battery life is approximately 8 hours per charge via USB, which is sufficient for a night's use but requires regular recharging for consecutive nights of travel. Volume is controlled via a continuous dial rather than discrete steps, allowing precise adjustment. The unit is small — about the size of a golf ball — and attaches to a nightstand power cable with a short USB cable included.

For the price, the Rohm delivers the core promise: effective acoustic masking that meaningfully reduces noise fragmentation. The sound quality is adequate — not LectroFan-level, with somewhat less bass fullness and moderate volume ceiling — but better than most sub-$30 competitors. The limited sound selection (three options) is the main trade-off versus more expensive digital machines.

Pros: Excellent value for the price; USB rechargeable and portable; continuous volume dial for precise adjustment; small and unobtrusive; no-app simplicity; good first machine to try before investing more.

Cons: Only three sound options; moderate maximum volume may not cover very loud environments; 8-hour battery requires daily charging for travel use; audio quality noticeably below LectroFan at maximum volume.

Our verdict: The Rohm is the right choice if you want to try white noise without spending more than $30, or if you need an ultra-compact secondary machine for travel at a budget price. For primary bedside use, the LectroFan Classic's improvement in sound quality and variety justifies the additional cost — but the Rohm is genuinely good for what it is.

Comparison: Top 5 White Noise Machines at a Glance

How to Use a White Noise Machine Effectively

Placement

For most bedroom setups, place your sound machine on a nightstand or dresser at or near mattress level — not on the floor (where high-frequency masking is reduced) and not on a surface that will vibrate sympathetically and create buzzing. Point the speaker toward the room's main sound entry points: a door to a hallway, a window facing a street, or a shared wall. Some users find placing the machine near the door particularly effective for masking hallway noise from roommates or family members.

The AAP guidelines for infant rooms specify keeping sound machines at least 7 feet from the baby's crib — not for general adult use, but important to note if you're using a machine for an infant. For adults, any comfortable bedroom distance is fine; most sound machines are designed to be used at nightstand distance (1–3 feet).

Volume Settings

The most common mistake with white noise machines is using them at too low a volume. At insufficient volume, the machine doesn't raise the ambient noise floor enough to provide meaningful masking. A general guideline is to set the volume so that if someone speaks in a normal voice in the next room, you can tell they're speaking but cannot clearly make out words. This corresponds to roughly 50–65 dB at the bedside for most adults — well within the comfortable range for extended listening.

Do not set the machine to maximum volume unless your environment is particularly loud. Very high volumes (above 70–75 dB continuous exposure during sleep) may affect sleep quality negatively for some people, and are generally unnecessary for effective masking in residential environments. Start at a moderate setting and increase only if you find disruptive sounds are still breaking through.

Continuous Play vs. Timer

Use continuous play for the full night. Sleep is fragmented most easily during the lighter sleep stages that bookend deeper sleep cycles — transitions between NREM and REM that occur approximately every 90 minutes throughout the night. Using a 30 or 60-minute timer means the machine turns off while you are still cycling through vulnerable light-sleep periods in the second half of the night. Unless you have a specific reason to use a timer (allergies to continuous air movement from fan-based machines, a preference based on personal experience), continuous play provides better protection.

Combining with Other Sleep Hygiene Practices

A white noise machine works best as part of a complete sleep environment optimization rather than as a standalone fix. The highest-impact complementary measures:

• Blackout curtains: Light exposure during sleep disrupts melatonin and elevates cortisol. Blackout curtains address the visual equivalent of what white noise addresses auditorily — environmental intrusions your brain responds to involuntarily.
• Cool room temperature: Core body temperature must drop 1–2°F to initiate and maintain deep sleep. A room temperature of 65–68°F (18–20°C) is optimal for most adults. This is the most impactful single environmental variable for sleep quality.
• Consistent sleep schedule: The circadian clock is powerful — maintaining consistent bed and wake times within 30 minutes even on weekends dramatically improves sleep quality over time, independent of other interventions.
• Magnesium glycinate or L-theanine before bed: Both have meaningful research support for improving sleep onset and sleep quality. See our guide to the best magnesium supplements for sleep for more details.

White Noise Machines for Babies and Infants

White noise for infants is one of the most research-supported applications of sound masking technology — and also one of the most important areas for safe use guidelines. The calming effect of continuous white noise on infants is well documented, attributable partly to the similarity of white noise to the constant whooshing of uterine blood flow that surrounded babies in the womb for nine months. Multiple pediatric studies have shown white noise reduces crying time, speeds sleep onset, and extends sleep duration in newborns and infants up to 12 months. Pediatricians routinely recommend sound machines for families struggling with infant sleep.

However, the AAP published specific guidelines on infant sound machine use following a 2014 study that found several infant sleep machines could exceed safe volume levels when placed close to cribs. Current AAP recommendations:

• Keep the machine at least 7 feet (200 cm) from the infant's sleep space — place it across the room, not in or next to the crib.
• Keep volume at or below 50 dB as measured at the infant's position — approximately the volume of quiet conversation.
• Do not place the machine inside a crib, bassinet, or directly on the mattress.
• Use a machine with a maximum volume that can be reliably set to safe levels — machines with continuous volume dials (like the Yogasleep Rohm) or clear volume steps are preferable to those with only a maximum setting.

For parents, the LectroFan Classic and Yogasleep Rohm are both suitable for infant use at appropriate volume and distance. The Hatch Rest (a separate product from the Restore 2, designed specifically for children's rooms) is also popular and includes a built-in nightlight that is useful for infant feeding without turning on overhead lights.

FAQ: White Noise Machines for Sleep