Waking up
Why You Sleep Through Your Alarm (and How to Stop)
Why people sleep through alarms: deep sleep, short sleep and sleep inertia. What research says about snoozing, and practical fixes that help you wake on time.
· 7 min read
Sleep tracker · Smart alarm · Android
Wake up on time.
Understand your sleep, honestly.
Somnia is a sleep tracker and smart alarm for Android that won't let you oversleep, never invents sleep data, and explains sleep science with sources.
- Free to download
- No ads
- English & Español
- Android 8.0+
Why Somnia
Built on honesty, not guesswork.
Most sleep apps promise a lot from a phone on your nightstand. Somnia does fewer things, and does them truthfully.
An alarm that won't let you oversleep
Snooze works until one minute after your wake time. After that, the only button is Stop. Built for Android's background rules, with a check before bed that your alarm can ring.
Honest sleep tracking
Nightly reports, a sleep score and a calm vs restless timeline from optional sound sensing. Somnia never draws fake sleep stages from a phone.
Real stages from your watch or ring
Wear a watch or ring that records sleep? Somnia reads your sleep through Health Connect, with the full deep, light and REM breakdown in Pro. Read-only, and it stays on your phone.
Sleep science, with sources
Short facts from peer-reviewed studies, each with its source and its limits. "Linked to" means linked to. Nothing is overstated.
Private by design
No ads. Sound sensing measures loudness live and never records or saves audio. Every detail is in the privacy policy.
A bedtime plan that moves gently
Set a goal and Somnia shifts your bedtime toward it step by step, with home-screen widgets for tonight's bedtime, wake time and alarm.
The alarm
Designed so you actually get up.
Most missed mornings are not about the sound. Either Android quietly blocked the alarm, or one snooze became ten. Somnia handles both.
6:30Window opens7:00Wake time7:01Only Stop
Alarm armed
Before bed, a quick check confirms exact alarms, notifications, full-screen alerts and battery settings, so Android lets your alarm ring on time.
Smart Wake Pro
Inside your window, Somnia uses your phone's movement sensor to find a calmer moment to wake you. If the signal is too thin, it rings at your exact time.
Snooze deadline
Snooze until one minute after your wake time, then only Stop. A morning log shows exactly when your alarm rang.
Brain Health
See what sleep does for your brain.
The Brain Health tab pairs a 3D brain with 10-second facts from peer-reviewed studies. Each one shows its source and what the study can't tell you. Your own sleep habits sit right next to what research links to brain health.
17–19 h
awake, and some test scores matched a 0.05% blood alcohol level.
39 adults, mostly transport workers. Williamson & Feyer, 2000.
14 nights
of 6 hours in bed dulled attention as much as up to 2 nights with no sleep, and people barely noticed.
48 adults aged 21–38, in a lab. Van Dongen et al., 2003.
7+ hours
a night is what sleep experts recommend for adults aged 18 to 60.
AASM and Sleep Research Society. Watson et al., 2015.
Free and Pro
Everything you need to wake up is free.
No ads, and no paywall on your past nights. Pro is optional, for people who want deeper patterns.
Free
- Reliable alarm with snooze deadline and Alarm armed check
- Gradual bedtime plan
- Sleep tracking, nightly reports and sleep score
- Every past night, kept free
- Brain Health: 3D brain and sleep-science facts with sources
- Total sleep from your watch or ring via Health Connect
- No ads
Somnia Pro Optional
- Smart Wake window
- Deep, light and REM breakdown from your wearable
- Your habits next to what research links to brain health
- Sleep regularity and weekend social jetlag
- Tags: caffeine, screens, exercise, stress and more
- Sleep need and sleep debt estimate
- Doctor-ready PDF report, made on your phone
- All suggestions, long-term trends and the trend widget
Yearly (with a free trial when offered), monthly, or a one-time lifetime unlock. Cancel anytime in Google Play.
FAQ
Quick answers.
Will Somnia let me oversleep?
No: snooze works until one minute after your set wake time, and after that the alarm only offers Stop.
Before bed, the "Alarm armed" check confirms that exact alarms, notifications, full-screen alerts and battery settings let Android ring your alarm on time. In the morning, a log shows when the alarm rang.
Does Somnia record audio?
No. Somnia never records or saves audio.
Sound sensing is optional. When it is on, the app measures how loud the room is, live on your phone, to draw a calm vs restless timeline of your night. No recording is made, stored or uploaded.
Does Somnia show sleep stages?
Only real ones: Somnia shows deep, light and REM sleep when a watch or ring recorded them, reading them read-only from Health Connect.
A phone cannot measure brain activity, so Somnia never invents sleep stages from phone data. Without a wearable, you get sleep timing and duration, a nightly report, a sleep score and a calm vs restless timeline instead.
Is Somnia free?
Yes. The alarm, the bedtime plan, sleep tracking and every past night are free, and there are no ads.
Somnia Pro is optional. It adds Smart Wake, sleep regularity and social jetlag, tags, sleep need and sleep debt, a doctor-ready PDF report, all suggestions, long-term trends and the trend widget. You can choose yearly (with a free trial when offered), monthly, or a one-time lifetime unlock.
From the blog
Sleep, explained with sources.
Sleep tracking
Can a Phone Track Your Sleep Stages? What It Can and Can't Measure
A phone can estimate sleep timing and restlessness, but not sleep stages. How stages are measured, how accurate wearables are, and what to track instead.
· 5 min read
Sleep timing
Sleep Regularity and Social Jetlag: Why Consistent Timing Matters
What sleep regularity and social jetlag are, what large studies link them to, whether weekend catch-up sleep works, and how to make your schedule steadier.
· 6 min read
Tonight, set an alarm you can trust.
Free on Google Play for Android 8.0 and newer. English and Spanish.
