New — Smart Wake 2.0 · now on iOS & Android

Sleep deeply.
Wake rested.

Lull learns how you sleep and wakes you at the lightest moment inside a gentle window — so mornings feel like a choice, not an ambush. Adaptive soundscapes, smart alarms, and insights that actually mean something.

4.8 · 62k ratings Free for 14 nights
Sleep score, decodedOne 0–100 read on the whole night
Smart wake windowRang at 6:24, in light sleep
Every stage, mappedDeep, light and REM, all night
Adaptive soundscapesYour Deep Rest mix, faded to sleep
No wearable neededReads you from the nightstand
Coaching that landsBest nights start at an 11pm bedtime
4.8 App Store & Play, 62k ratings
2.4MNights tracked this year
+41 minMedian added deep sleep
Editor's ChoiceFeatured in Health & Fitness
01 Why Lull

A full night's coach, in your pocket.

No wearable, no chest strap. Lull reads your movement and breathing from the nightstand, then does the small things that add up to a genuinely better morning.

Smart Wake

Wake in your lightest sleep, never mid-dream.

Set the latest time you must be up. Lull watches your sleep cycles and rings in the calmest moment inside your window — so you rise on the natural upswing instead of being yanked out of deep sleep.

  • Gentle wake windowpick 15, 30, or 45 minutes of grace.
  • Sunrise tonesaudio that swells slowly, never a jolt.
  • Backup guaranteea hard alarm at your latest time, always.
Soundscapes

Layer the sound of the room you sleep best in.

Blend rain, ocean, fan, and brown noise into a mix that's yours, then let it fade out as you drift under. Every soundscape is recorded in lossless audio and loops seamlessly all night.

  • 120+ layered soundsfrom thunderstorms to a night train.
  • Adaptive fadevolume eases down as your breathing slows.
  • Offline & airplane-safedownload once, play with data off.
Insights

See the story of your night, then the pattern behind your week.

Lull turns raw data into plain-language coaching: what helped, what hurt, and the single change most likely to move your score. No jargon, no guilt — just the next small step.

  • Weekly & monthly trendsspot the drift before it becomes a slump.
  • Cause & effecttie caffeine, workouts, and screens to real scores.
  • Private by designyour sleep data never leaves your phone.
02 Reviews

Two million mornings, made kinder.

Nurses, night owls, new parents, and everyone in between — here's what changed once they slept with Lull on the nightstand.

The smart alarm alone is worth it. I stopped waking up groggy inside a week — now I'm up before it even fully rings. Genuinely the first sleep app that changed how I feel at 7am.
Mara ReyesICU nurse, Chicago
I've tried every tracker with a wearable and hated charging one more thing. Lull just listens from the nightstand and its insights are somehow more useful than my old ring.
Daniel OkaforProduct manager, Berlin
The soundscapes put our newborn — and us — to sleep. The offline downloads saved us on a red-eye flight. It's the one app the whole family relies on now.
Julia LindqvistArchitect, Stockholm

Your best morning starts tonight.

Download Lull free and keep every feature for 14 nights — smart wake, soundscapes, and full insights. Cancel any time; keep the sleep you'll have gained.

No card to start · $4.99/mo or $39/yr after trial · Family plan available

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