Last updated: October 4, 2026
Ocean sounds for sleep are worth a try if gentle waves make your room feel calmer. We haven't found a controlled study showing that an ocean track improves sleep on its own. Pick waves that stay soft, keep the volume low, and use a fading timer if you'd rather fall asleep to sound and wake up to quiet.
We make StillTune, a sleep and focus app that includes an ocean layer, so we have a stake in this question. That's also why we've stuck closely to what the studies below actually tested.
Do ocean sounds for sleep actually help?
They may help you relax at bedtime, but nobody has shown that they improve sleep. The closest large test is a 2026 trial published in SLEEP. Researchers randomly assigned 495 working adults with self-reported sleep problems to four groups. Three got audio through a mental health app (bedtime stories, sleep sounds, or sleep skills), and one got a digital control. After four weeks, the sleep sounds group reported slightly less sleep disturbance than the control group, but the difference was very small and not statistically significant.
That trial didn't look at ocean waves as a separate sound, and sleep was measured with questionnaires. So it can't tell us whether waves help. It does suggest that a sleep-sounds feature, used as a standalone fix, shouldn't be expected to change much. The authors also call for future studies that track sleep objectively.
What happened when researchers tested a wave-like sound?
A small study in Frontiers in Sleep comes closer to the sound of the sea. Twelve young men in Japan who reported trouble sleeping each spent three nights in a sleep lab: one in silence, one with white noise, and one with a wave-like sound. That sound, made by Yamaha, swells like ocean waves at a pace slightly slower than breathing. The sound played all night at about 40 decibels, and sleep was recorded with polysomnography, the overnight recording used in sleep clinics.
One participant's data was lost, leaving 11. The researchers compared each sound night with the silent night, then compared the two sounds with each other. The wave-like sound and white noise didn't differ significantly on any sleep measure, including how long it took to fall asleep. Sleep spindles, brief bursts of brain activity during light sleep, went up for 7 of the men with the wave-like sound. The authors say all-night sound "may" affect spindles.
It's a small, older study with one night per condition and a group of young men, so we wouldn't read much into it either way. It also tested a designed background sound, which may be quite different from the surf track you'd find in an app.
Why do some ocean tracks feel restless?
Real waves change in strength. A quiet wash can be followed by a much louder break, a gull, or wind hitting the microphone. That's what makes a recording vivid, and it's also what can pull you back when you're trying to drift off. To our ears, an even, distant surf is easier to tune out than a close shoreline with sharp crashes.
We haven't seen a study that compares wave speeds or types of ocean sound for sleep. When we judge a track, we listen for sudden peaks, abrupt edits, spoken ads, and a loop short enough to predict. Volume matters too. If you turn the waves up to drown out everything outside, they can become what keeps you awake.
If waves don't suit you, rain sounds are steadier, and a quiet instrumental track is another option.
Should ocean sounds play all night?
Neither study above tested how long ocean sound should play. The wave-like sound in the Japanese study ran all night, but that study was too small to say whether all night beats a timer.
We'd keep the sound on during the part of bedtime when it helps. If you like a quiet room once you're asleep, set a timer that fades the sound out. If you share a room, ask whether the other person wants it too. Keep the speaker away from your head and the volume low. The National Institute on Deafness and Other Communication Disorders says sound can damage hearing when it's too loud, even briefly, or loud for a long time. We cover all-night listening in more detail in our article on whether it's bad to sleep with music on.
If street noise or a neighbor is the real problem, waves can make the room feel nicer, but they won't remove that noise. Earplugs or a different room setup may do more. And if poor sleep keeps going, talk to a doctor or a sleep specialist.
How would we set up ocean sounds in StillTune?
In StillTune, you can play the ocean layer under instrumental music and set the volume of each one separately in the Mixer. Sleep mode gets slower and thinner as the night goes on, and the sleep timer fades the sound out gradually. We'd start with the ocean low and add music if you want more. The app is free with ads, needs no account, and works offline once you've played a mode online. Try StillTune on the App Store.
Frequently asked questions
Are ocean sounds proven to improve sleep?
No. A 2026 trial of app-based sleep sounds found no statistically significant improvement in self-reported sleep disturbance compared with a digital control after four weeks. It didn't test ocean waves separately, so it can't say whether waves alone help.
Are ocean sounds better than rain for sleep?
We haven't found a study that compares the two directly. Waves rise and fall, while rain tends to be steadier. Try each at a low volume and notice which one you stop hearing. Our rain sounds guide covers that option.
Can ocean waves keep you awake?
They can if the track has loud crashes or sudden changes that keep grabbing your attention. Try a softer, more distant surf, turn it down, or switch to a steadier sound like rain. If you sleep better in silence, there's no reason to keep the waves on.
Can ocean sounds increase deep sleep?
We don't know. In a small overnight study, deep sleep (stage N3) was recorded with silence, white noise, and a wave-like background sound. The wave-like sound didn't differ significantly from white noise. The study involved 11 young men, and the sound was designed to mimic waves.
Is it better to use a timer for ocean sounds?
Use one if you like falling asleep to sound but prefer quiet later. We haven't seen research on the ideal length for ocean audio. StillTune's timer fades the sound out, so a shorter session won't end with an abrupt stop. Keep the volume low either way.