Getting Started
Welcome to NapSense! Our smart nap alarm uses advanced motion detection to ensure you wake up at the perfect time. Here's everything you need to know to get the most out of your napping experience.
How NapSense Works
NapSense uses your device's accelerometer and gyroscope to detect when you fall asleep. Once sleep is detected, it automatically starts your preset timer, ensuring you get the exact amount of rest you intended.
Quick Setup Guide
- Step 1: Download NapSense from the App Store
- Step 2: Grant permission for Notifications when prompted
- Step 3: Set your desired nap duration
- Step 4: Place your device on a stable surface near you (bed, couch, or desk)
- Step 5: Tap "Start" and relax - NapSense will detect when you fall asleep
Frequently Asked Questions
Q: How does sleep detection work?
NapSense uses your device's motion sensors to detect the subtle changes in movement patterns that occur when you fall asleep. The app analyzes these patterns locally on your device to determine when you've entered sleep state.
Q: Where should I place my device?
Place your device on a stable surface near you - on your bed, couch, or desk. The device should be close enough to detect your movements but doesn't need to be touching you. Avoid placing it on surfaces that vibrate or move independently.
Q: What permissions does NapSense need?
NapSense only requires Notification permissions to alert you when your nap timer ends. The app uses your device's built-in motion sensors (accelerometer and gyroscope) which don't require special permissions. All data is processed locally on your device.
Q: Can I use NapSense with Do Not Disturb mode?
Yes! NapSense alarms will sound even when Do Not Disturb is enabled. We recommend using Do Not Disturb during your nap to avoid interruptions from other notifications.
Q: How accurate is the sleep detection?
NapSense's sleep detection algorithm has been optimized for nap scenarios and typically detects sleep within 2-5 minutes of falling asleep. Accuracy may vary based on device placement and individual movement patterns.
Q: What alarm sounds are available?
NapSense offers four carefully selected alarm sounds: Default, Gentle, Nature, and Classic. You can preview and select your preferred sound in the Settings. All sounds are designed to wake you effectively without being jarring.
Q: Does NapSense work in the background?
Yes, NapSense continues to monitor and will alarm even if your device is locked or if you switch to another app. White noise playback and sleep detection continue in the background. Just make sure not to force-quit the app.
Troubleshooting
Sleep Detection Not Working
- Ensure the app is running and not force-quit
- Place your device on a stable surface that can detect your movements
- Avoid placing the device too far from your body
- Try adjusting the detection sensitivity in Settings
Alarm Not Sounding
- Check your device volume and ringer settings
- Ensure the app has notification permissions enabled
- Verify that your device is not in Silent mode (alarm will still vibrate)
App Crashes or Freezes
- Try force-quitting and restarting the app
- Ensure you have the latest version from the App Store
- Restart your device if problems persist
- Contact support if issues continue
Tips for Better Naps
- Timing: The ideal nap length is 20-30 minutes to avoid sleep inertia
- Environment: Find a quiet, comfortable space with dim lighting
- Temperature: A slightly cool room (65-68°F / 18-20°C) is optimal for napping
- Consistency: Try to nap at the same time each day if you nap regularly
Privacy & Security
Your privacy is our priority. All motion data used for sleep detection is processed locally on your device and is never transmitted to our servers or third parties. For complete details, please review our Privacy Policy.
System Requirements
- iOS 17.0 or later
- iPhone XS or newer (requires iOS 17.0 support)
- Approximately 50 MB of storage space
- Built-in accelerometer and gyroscope (standard on all compatible devices)
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