Best Apps

By Filip Kowalski · Updated

Best Sleep Apps in 2026: 5 Honest Picks

Crescent moon over a sleeping village with one lit window

Four different products get called a sleep app. One plays sound until morning, one reads you a story, one builds a narrated session around a timer, and one records how you slept and tells you about it over breakfast. Choosing the kind takes a minute and saves you three downloads.

Slo is a sleep sounds app for iPhone, Android and Mac: 200+ sounds with 89 of them free, a mixer that holds a volume on every layer, and a timer from 15 minutes to 24 hours that fades out before it stops. The whole library costs a monthly or yearly subscription or one lifetime payment, and the 180 sounds at slonoise.com play free in a browser with no account. Calm is the pick for Sleep Stories and guided meditations, BetterSleep for sounds and tracking in one app, Pzizz for narrated nap and sleep sessions, and Apple’s Background Sounds for a steady sound with nothing to install.

Slo is ours, and it does no tracking, no stories and no narration. The sections below say where that costs you something.

The five apps side by side

PickBest forWhat you controlVerified platformsCost note
SloSound that runs all night200+ sounds with 89 free; layers without a limit, a volume on each; timer 15 minutes to 24 hours, fade-out up to 2 minutesiPhone, Android, Mac; browserMonthly, yearly or one lifetime payment; the 180 browser sounds cost nothing
CalmGuided sleep contentSoundscapes, music, meditations, Sleep StoriesiOS, Android, webSelected free content; Premium library
BetterSleepSounds and tracking togetherLarge mixer, stories, meditation, trackingiOS, AndroidFree trial, then a subscription
PzizzGenerated nap and sleep sessionsSession length, voice and music volume, alarmiOS, iPad, Mac (the iPad app, on Apple silicon), AndroidFree Classic tier; Pro subscription
Apple Background SoundsNothing to installOne ambient sound, volume/EQ, stop timeriPhone, iPad, MacIncluded in supported software

We judged each app on sound control, the tools that matter at bedtime, which devices it reaches, and how clearly the company documents its own product. For the other four, that came from the official product and support pages we read on July 31, 2026; we ran no hands-on tests, counted no star ratings and took no company’s sleep claim as evidence. Slo is ours, and its figures come from the app’s own source, version 3.132, read on September 14, 2026. None of these apps can promise you a better night, ours included.

Sounds, stories or tracking: which kind do you need?

Start from what is keeping you awake.

  • The room is loud. Traffic outside, or a neighbor’s TV through the wall. You want steady sound and a timer, and the rest of the app hardly matters.
  • Your own thinking is loud. A voice gives a busy mind something passive to follow, which is what Sleep Stories and guided sessions are for. Some people can’t tune language out and end up listening harder, so this one is worth testing before you pay.
  • You want the numbers. How long you were awake, when you moved, what your heart did. That is a tracker, and it does nothing to the night itself.

If you specifically want something that is not guided meditation, the wordless end of the list is Slo and Apple’s Background Sounds, with BetterSleep’s mixer close behind once you ignore its spoken content.

1. Slo: best for a wordless mix that runs all night

Slo holds 200+ recorded sounds and keeps 89 of them free for good. Among them are 22 noise recordings, from brown and pink through white, grey, green, blue and violet, plus 11 rain tracks, 9 water, 6 wind and 5 thunder. Stack as many as you like, give each one its own volume, and the balance is still there when you start that pair again tomorrow.

Set the timer anywhere from 15 minutes to 24 hours, and the sound fades for 15 seconds to 2 minutes before it goes, so the silence doesn’t wake you. It keeps playing with the screen off on iPhone and Android, and Android asks to skip battery saving once you set two hours or more. Anything you have played once sits on the device, so the same mix works with the Wi-Fi off. The rest of the library needs a monthly or yearly subscription or one lifetime payment, while the 180 sounds at slonoise.com play in a browser with nothing to sign up for.

Best for: One wordless mix from bedtime to morning, with the option of paying for it once.

Consider: No narration, no tracking, no alarm, no stories. A free account fades out for 30 seconds at the longest. If a voice is what settles you, read the Calm and Pzizz entries below.

2. Calm: best guided sleep library

Calm runs on iOS, Android and the web, and puts soundscapes, music, meditations and Sleep Stories in one library. Its help center counts more than 300 Premium Sleep Stories, with a few Stories and background Scenes open for free. For a mind that needs somewhere to go at 11 p.m., no other app here has as much to listen to.

Best for: People who drift off faster with a voice than with a fan sound.

Consider: What you pay changes by country and by where you buy, so read the offer in your own store rather than an annual figure from a review.

3. BetterSleep: best for sounds and tracking together

BetterSleep’s support pages list more than 500 sounds and melodies, over 100 SleepTales, meditations, a timer, bedtime reminders, tracking and a sleep recorder, and its mixer takes music alongside the sounds. It is the one app here that covers the audio and the record of your night in the same place.

Best for: Anyone who wants the tracking and the bedtime audio without switching apps.

Consider: BetterSleep’s help center says it left the free tier for a subscription in 2025, so a new account gets a trial and little else without paying. If one noise sound is all you came for, you are paying for a lot you will never open.

4. Pzizz: best generated sleep and nap sessions

Pzizz builds narrated sessions out of music, voiceover and sound effects, and puts them together again each time you press play. Its store listings describe Sleep, Nap and Focus modules: you set the length, move voice and music volume apart, and an alarm ends a nap. Pzizz documents offline use on its site, and a free Classic tier stays after the Pro trial runs out.

Best for: A session with a known end, especially a nap that finishes on an alarm rather than running on.

Consider: There is no documented layer mixer, and only Focus runs in a browser. Sleep and Nap need the app.

5. Apple Background Sounds: best built-in option

Background Sounds comes with iPhone, iPad and Mac. Apple documents volume, an equalizer and a stop timer on supported versions. It is the shortest route from wanting a steady sound tonight to hearing one, with no download and no account.

Best for: A plain steady sound and nothing else on the phone.

Consider: One preset at a time, no layering, and it exists only on Apple hardware.

If you wake in the middle of the night

Waking at 3 a.m. and lying there is the case an app helps with least. Sound that runs all night is at least already playing when you open your eyes, so there is nothing to reach for and no screen to light up, while a story means picking up the phone and starting something. None of that treats insomnia. When bad nights have run on for weeks, tell a doctor, and ask about cognitive behavioral therapy for insomnia, usually shortened to CBT-I.

Before you pay for one

  • Buy for the problem, not the promise. Steady sound covers noise that comes and goes; a story occupies a mind that won’t stop; a timer means audio isn’t still running at 6 a.m. Nothing on this list reaches the medical causes of bad sleep.
  • Find out how you feel about voices. Try Calm’s free content and a browser sound player on two different nights. It costs nothing and settles the question.
  • Keep the bedtime part short. Starting a saved sound or session should take a few taps with the screen dim and your eyes half shut.
  • Test the ending. A timer that fades, a session that stops itself and an alarm that wakes you are three separate behaviors, and only one of them is what you wanted.

Read how to create a sleep soundscape for the sound-first setup, or how to fall asleep faster for the routine around it.

Frequently asked questions

What is the best sleep app?

That depends on what keeps you awake. For one wordless mix that runs to morning, Slo holds 200+ sounds with 89 free, layers with a volume on each, a timer from 15 minutes to 24 hours with fade-out, and a lifetime option. Calm is the one for Sleep Stories and guided meditations, BetterSleep puts sounds, stories and tracking in one app, Pzizz builds narrated nap and sleep sessions, and Apple’s Background Sounds needs no download at all.

Which sleep apps aren’t guided meditation?

Slo plays recorded sound with no voice in it, and Apple’s Background Sounds does the same from system settings. BetterSleep holds meditations but you can stay in its mixer and ignore them. Calm and Pzizz are built around narration, so skip those if a voice keeps you listening.

Which of these apps tracks my sleep?

BetterSleep is the only one here: its support pages list tracking and a sleep recorder alongside the sounds and SleepTales. Slo, Calm, Pzizz and Apple’s Background Sounds play audio and record nothing about your night.

Do sleep apps actually improve sleep?

None of these apps can promise you a better night, and none of them treats insomnia. What they give you is mechanics: steady sound that softens noise from the next room, a timer that stops playback without you, and a bedtime you repeat. Weeks of bad nights are worth a doctor’s appointment.

Should I pick a sleep sounds app or a meditation app?

Pick sounds if wordless audio lets you drift off and a voice keeps you following it. Pick stories or meditations if your own thinking is the thing keeping you up. Plenty of people use both, and a free tier or a browser player tells you which you are for the price of nothing.

Are sleep apps safe to use all night?

Play them at a level you could talk over, and set a timer if you only need sound while you settle. Keep a loud speaker off the pillow and away from your head. Talk to a doctor about sleep that stays broken, and to an audiologist about your ears.

Sources checked July 31 and September 20, 2026

Explore more sounds in Slo

Stack two or three sounds, keep the blend, and let the timer stop it. Slo, on iOS, Android and Mac.

Download on the App Store Get it on Google Play

Filip Kowalski is the developer of Slo and writes about sound, sleep, and focus.