Thanks for sleeping with Mugi. Here's how to get help and answers to common questions.
Email us at support@polysail.net. Please include your device model, iOS version, and app version (found in Bedtime settings). We usually reply within a few days.
How does Mugi's Nest work?
Set your bedtime, say goodnight, and put your phone down. Mugi sleeps while your phone sleeps. In the morning, open the app to settle the night and see what Mugi found. Picking up your phone during the night makes the night restless — Mugi only gathers leaves on restless nights.
Do I need an account?
No. There is no sign-up and nothing to log into. Everything stays on your device.
How do bedtime reminders work?
The first time you say goodnight, the app asks for notification permission. You can toggle weekday and weekend reminders separately in Bedtime settings (the bed icon on the Tonight screen).
What is Mugi's Nest Pro?
Pro unlocks all room themes, every soundscape, Pro-exclusive furniture, four app icons, and weekly & monthly sleep stats. It's available as a yearly subscription or a one-time Lifetime purchase.
How do I restore my purchase?
Open the Pro paywall and tap "Restore Purchases". Purchases are tied to your Apple ID.
How do I cancel my subscription?
Subscriptions are managed by Apple: Settings → your name → Subscriptions → Mugi's Nest. Cancellation stops renewal; you keep Pro until the current period ends.
I lost my progress after reinstalling.
All progress is stored on-device. Deleting the app deletes its data — this is by design (see our Privacy Policy).