SleepCraft

Sleep smarter. Wake refreshed. Every single morning.

SleepCraft calculates your optimal sleep and wake times based on 90-minute sleep cycles — so you wake up at the end of a cycle feeling energized, not groggy.

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HOW IT WORKS

Your sleep moves through 90-minute cycles of light, deep, and REM sleep. Waking up in the middle of a cycle makes you feel tired. Waking at the end of a cycle makes you feel refreshed.

SleepCraft does the math for you.

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TWO MODES

"I need to wake up at..."
Tell us your wake-up time. We'll show you the best times to go to sleep — with 3, 4, 5, or 6 complete sleep cycles.

"I'm going to sleep now"
Going to bed? We'll calculate the best times to set your alarm so you wake at the end of a cycle.

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FEATURES

Sleep Cycle Calculator
Calculate optimal bedtimes and wake times based on 90-minute sleep cycles. Accounts for the average 14 minutes it takes to fall asleep.

Set Alarm
Set your phone alarm directly from the results screen. One tap — your alarm is set at the perfect time.

Sleep Quality Ratings
Each option is rated: Perfect (6 cycles, 9h), Great (5 cycles, 7.5h), Good (4 cycles, 6h), or Minimum (3 cycles, 4.5h).

Sleep Cycle Visualization
See a beautiful wave diagram showing how sleep cycles work — light, deep, and REM stages explained visually.

15 Expert Sleep Tips
Science-backed tips to improve your sleep quality: room temperature, screen time, caffeine, exercise timing, and more.

Customizable Fall-Asleep Time
Everyone falls asleep at different speeds. Adjust the fall-asleep time (default 14 minutes) in settings for more accurate calculations.

Beautiful Night UI
Calming dark theme with stars and moon — designed to be easy on your eyes at bedtime.

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WHY SLEEPCRAFT?

- Based on real sleep science (90-minute cycles)
- Set alarm with one tap
- Beautiful, calming night-sky design
- 100% offline — no internet needed
- No account or sign-up required
- No ads. No tracking. Just sleep.
- Lightweight and fast

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PRIVACY
SleepCraft does not collect any data. Your sleep times stay on your device. We don't use analytics, ads, or tracking of any kind.

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Perfect for:
- Anyone who wakes up feeling tired
- Students with early morning classes
- Professionals with irregular schedules
- Night owls trying to fix their sleep
- Parents planning sleep around a baby's schedule
- Anyone curious about sleep science

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Stop waking up groggy. Download SleepCraft — it's free