# Sleeptopia — Sleep builds World Heritage.

> Sleep builds World Heritage. (iPhone/iPad app by Kanta Osumi.)

- Source: https://appshunter.io/ios/app/sleeptopia/id6760173494 (this page in markdown: same URL + `.md`)
- Developer: [Kanta Osumi](https://appshunter.io/developer/1872595837)
- Category: Games, Entertainment, Casual, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 755 MB
- Languages: American English, Japanese
- Released: 2026-03-31
- Data updated: 2026-08-16
- User reviews in markdown: https://appshunter.io/ios/app/sleeptopia/id6760173494/reviews.md

## What is Sleeptopia?

The time you spend asleep builds World Heritage sites.

Nemtopia is a sleep-sync app that turns your daily sleep into the construction of a diorama.

Depending on how long you sleep, your heritage site will gradually approach completion. Enjoy the changing scenery every time you wake up in the morning as you build your own unique collection.

■ Construction progresses as you sleep
Construction progresses based on your sleep duration, and your World Heritage site will be assembled piece by piece. You can enjoy the changes at each stage as it nears completion.

■ Key features
- Syncs with Apple Health to automatically reflect your sleep data
- Manual tracking using the "Sleep/Wake" button
- Home screen widget to display your current heritage site and construction progress
- Save completed heritage sites to your collection
- Enjoy the excitement of choosing which heritage site to build next to expand your collection

■ Nemtopia Pass
We offer a monthly, auto-renewing subscription.
By joining, you can enjoy benefits such as ad-free experience, rerolling heritage site options, and pass-exclusive heritage sites. Available benefits vary depending on the plan.

* Some features and items require in-app purchases.

Turn your sleep habits into a construction experience that takes shape a little bit every day.
With Nemtopia, turn your sleep into a World Heritage site.

Terms of Use (Apple Standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Nemtopia Pass Premium Monthly | $4.99 | per month |
| Nemtopia Pass Lite Monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Blueprint Ticket | $0.49 | one-time |
| 1 Magic Blueprint | $0.99 | one-time |
| Magic blueprints: 3 | $2.99 | one-time |



## Version history (last 5 releases)

### 1.0.7 — 2026-07-21

Improved the stability of automatic synchronization for sleep tracking data in the healthcare widget.
Improved the animations when completing legacies and the display during app startup.
Adjusted the frequency of advertisements.
Fixed other minor bugs.

### 1.0.6 — 2026-07-08

Added 20 relics
Added magic blueprints
Added a data transfer feature for device changes
Fixed a bug where sleep tracking would fail

### 1.0.5 — 2026-04-07

Fixed an issue where measurements were disabled when moving to the background.
The maximum duration for a single sleep measurement has been increased to 16 hours.
Added an option in the settings to toggle alarm sound effects (SE) on/off.
You can now view the progress of a building even while it is under construction.

### 1.0.4 — 2026-04-04

Fixed bugs:
- Initial selected heritage changes incorrectly
- Incorrect health sync status display in the sleep tab
- Past records being reflected during initial health sync
- iOS 18 widget display issues

### 1.0.3 — 2026-04-03

Fixed an issue with the alarm.

## More apps by Kanta Osumi

- [One Day Two Turns](https://appshunter.io/ios/app/one-day-two-turns/id6758372396)
- [Debt Clock-ポモドーロ](https://appshunter.io/ios/app/debt-clock/id6758671250)
- [Wijetan - Widget Flashcards](https://appshunter.io/ios/app/wijetan-widget-flashcards/id6759213943)
- [Diarly one word](https://appshunter.io/ios/app/diarly-one-word/id6763546189)

All apps by Kanta Osumi: https://appshunter.io/developer/1872595837

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*