Draft copy — not yet approved
A sleep program on your phone
One window. One wake time. That's the whole plan.
Fast Asleep builds a sleep window from your own nights, stays with you through the long evening, the middle of the night and the first minutes of the morning, and grows the window when three nights in a row show it's time.
Free to start · No card · In English and Hebrew
The three rules
Three simple rules. The app helps you keep them.
Out of the bedroom until your window opens
Tired isn't the signal; sleepy is. The hours you stay up build sleep pressure, your body's drive to sleep, and that pressure is what helps sleep come once you're in bed.
Awake in bed? Get up for a bit
Lying awake for what feels like 15 to 20 minutes? Go somewhere dim, do something calm and dull, and come back when you're sleepy. No clock-watching. If getting up at night isn't safe for you, sit up in bed with a dim light instead.
Up at the same time, whatever the night
One wake time every morning, weekends included, after good nights and bad ones. It sets your body clock, and the tiredness from a short night becomes sleep pressure for the next one.
With you through the night
The app knows what time it is.
- Evening
- A countdown to your window, and your stay-up kit: the three things you picked to do until then, each one dim, low-effort and outside the bedroom.
- The middle of the night
- “Awake? That's OK.” One tap when you get up, one when you're back in bed, and a three-minute wind-down once you're up, if you want it.
- Morning
- A quick check-in turns last night into your number: how much of your time in bed was actually sleep.
Your window
It moves with your numbers.
Every three logged nights the app reviews your window. Nights holding up? It can grow. Close? Hold it three more nights. Still struggling after two reviews in a row? The app may offer a slightly shorter window, but never if you've told us a tired day could be unsafe for you. Nothing changes unless you confirm it, and it never suggests a window shorter than six hours.
The window, its reviews and Today's evening, night and morning moments are part of Routine, $49 a month. The journal and your nightly number are free.
How it works →
Lessons
Released in step with your nights.
Short lessons across four stages, each one to read or listen to, opening as your nights move you forward. You always know why you're doing what you're doing.
Honest about the hard part
It isn't magic on night one.
The first nights are rough; that's the sleep pressure building, and it's the point. As the nights stack up, that pressure is designed to help you fall asleep faster. You may be sleepier during the day for the first week or two, so never drive drowsy. Some health conditions, medications and jobs make a shorter night risky; if one might apply to you, talk to a doctor first. The list is on How it works.
Who should talk to a doctor first →Plans
Start free. Add the program when you're ready.
Tracker
Free
Measure the problem properly.
Routine
$49a month
The full structured program.
Guided
Coming soonEverything in Routine, plus an AI sleep coach.
From the library
Start with the evidence.
Not sure where you stand?
Take the three-minute sleep check.
Eleven honest questions. Your answers stay in your browser.
Open now
Log your first night tonight.
The journal and your nightly number are free. The window is there when you're ready for it.
Start free