Support - NapSense

Getting Started

Welcome to NapSense. It waits until your phone stops moving before it starts the countdown, so the time you spend falling asleep does not come out of your nap. 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: Keep the phone in your hand, or on the bed beside you — not on a nightstand 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 watch for the phone to stop moving. Once it has been still for long enough — one to three minutes, depending on your sensitivity setting — the app treats that as you having fallen asleep and starts the countdown. All of this happens on your device.

Q: Where should I place my device?

Keep it in your hand, or on the bed or couch beside you, so that it moves a little while you are still awake. Do not put it on a nightstand or a desk: a phone on a hard surface never moves at all, so NapSense reads that as sleep the moment you set it down and starts counting early. Avoid placing it on surfaces that vibrate or move independently.

Q: What permissions does NapSense need?

NapSense needs Notification permission so it can wake you when the timer ends. The motion sensors need no permission of their own. You will also be asked once about ad tracking; you can decline that and the app works exactly the same. Sleep data is processed 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?

Detection is based on how long the phone stays still, so the wait is one to three minutes depending on your sensitivity setting. Where you put the phone matters more than anything else: a phone on a nightstand never moves at all, so the app reads that as sleep the moment you set it down. Keep it in your hand or on the bed beside you.

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
Keep the phone in your hand or on the bed beside you, not on a hard surface
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
Alarms play even when the ring switch is set to silent. There is no vibration-only alarm.

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)

Still Need Help?

Our support team is here to assist you with any questions or issues.

Email: [email protected]

We typically respond within 24-48 hours

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