App screenshots
🧠 Built for ADHD brains

Sleep should be
interesting,
not disciplined.

Captain Nightcap is a sleep app built for ADHD-style sleep challenges. No guilt. No punishment. Just tools that actually work.

🤖 Download APK
Sideload and sleep better tonight. Android only. Free.

How it works

1
🔔
Bedtime Alarm
A full-screen alarm with locked volume. You choose a pill.
2
💊
Choose a Pill
Green to sleep. Red to see consequences. Skip to snooze.
3
🎬
Pick a Method
Choose from 10 built-in methods or your own custom ones.
4
⏱️
Follow Step-by-Step
Full-screen guide with arc timer for each step.
5
🌙
Still Awake?
Guilt-free 30-min break. Try another method. No guilt if it's a write-off.

Everything you need. Nothing you don't.

🔄
Running Method State
Leave and return to your in-progress method from Home and Methods.
🔔
Reliable Notifications
Native foreground service ensures step-end alerts even under aggressive battery optimization.
📚
10 Built-in Methods
Doom Scroll Wind-Down, 4-7-8 Breathing, Body Scan, Sleep Cinema and more.
✏️
Custom Methods
Create your own methods with named steps and optional timers.
⏰
Still Awake Flow
Two rounds of 30-min breaks with gentle nudges. Final option: tonight's a write-off, no guilt.
🔒
100% Local & Private
All data stays on your device. No sign-ups, no servers, no tracking.
📱
Built for Android
React Native / Expo SDK 54 with Kotlin native modules for alarm reliability on Samsung / Android 14+.
🚫
No Accounts. No Tracking.
Just you, your sleep, your data. Offline-first, always.

Ready to sleep better tonight?

Free. No account needed. Sideload in 30 seconds.

🤖 Download APK — It's Free
Android 10+ · No Play Store needed · Sideload directly