# THIM - Sleep Ring

> Sleep conditioning program with tracking, power naps, and smart alarm. (iPhone/iPad app by Re-Time Pty Ltd.)

- Source: https://appshunter.io/ios/app/thim-sleep-ring/id1538264675 (this page in markdown: same URL + `.md`)
- Developer: [Re-Time Pty Ltd](https://appshunter.io/developer/637379603)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 96 MB
- Languages: English
- Released: 2020-11-18
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/thim-sleep-ring/id1538264675/reviews.md

## What is THIM?

THIM is the ring that conditions you for better sleep. Sleep well tonight and get the most from tomorrow. 

Developed by sleep scientist Professor Leon Lack, use one of THIM’s many novel features: 

•        IMPROVE SLEEP – THIM offers a unique sleep-conditioning program designed to help you fall asleep sooner and reduce wakefulness across the night. 

•        TRACK SLEEP QUALITY - Use your phone to track your sleep quality throughout the night including stages of sleep and periods of wakefulness. 

•        POWER NAP – THIM determines when you fall asleep to the nearest minute. No other device can deliver this accuracy. This ensures exactly 10-mins of sleep during your nap – the time needed to avoid sleep inertia upon waking. 

•        SMART ALARM – Waking from deep sleep is not pleasant. In contrast, waking from light sleep feels great. Use this feature to ensure you wake from a light stage of sleep so you bounce out of bed in the morning and enjoy a great start to the day. 

•        MONITOR SLEEP EFFICIENCY – THIM provides a unique sleep efficiency score for each night of sleep. This algorithm is used by sleep clinics to score sleep studies. 

•        JOIN OUR COMMUNITY – Join thousands of people whom have traded in their non-assistive sleep tracker for a product, which contains novel, evidenced-based programs to improve and optimize your sleep. 

Other device's can only track sleep. THIM improves sleep. Welcome.

## Key features

- Sleep conditioning program
- Track sleep quality and stages
- Accurate 10-minute power naps
- Smart alarm for light sleep wake-ups
- Sleep efficiency scoring
- Community for sleep optimization

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/thim-sleep-ring/id1538264675/reviews.md

### 2/5 — Inconsistent function

*2024-04-04, version 1.4.2*

Device worked for 2 weeks and now has failed.
Customer service slow response.
Waiting to see if there is a fix before I seek a refund.

### 1/5 — Utter garbage

*2024-03-06, version 1.4.2*

Followed instructions carefully. Pressed the vibration every 30 seconds for 3 hours till asleep. Sync data next day says I fell asleep in less than a minute 9 times with no further info at all. What a waste of money.

### 1/5 — 金をドブに棄てるということの意味がよく分かった

*2022-11-10, version 1.4.2*

使い始めて１ヵ月もしないうちにアプリが本体を認識しなくなった。アプリの不具合を疑いサポートを依頼したものの返事がなくなった。機械もダメなら、販売会社もダメダメダメダメでした。★はマイナス５です。

### 1/5 — 使えなくなった

*2021-06-12, version 1.3.2*

少し前から90%以上の充電残量がないと利用出来なくなって使えない。

### 1/5 — Thim sleep ring doesn’t work, thim app doesn’t work, huge waste of money

*2020-11-24, version 1.2.7*

I had such high hopes for this product (the thim sleep ring) that’s meant to retrain your sleep and track your sleep...and it’s never ever worked properly. I was told the new firmware and the new app would address this but it hasn’t. This device is the last thing you want if you’ve got insomnia because it’s so frustrating to have spent considerable cash on this “sleep ring” which can’t reliably connect via Bluetooth, and an app that looks like it’s 5 years out of date.

## Frequently asked questions about THIM

### How does THIM improve sleep?

THIM offers a unique sleep-conditioning program designed by sleep scientist Professor Leon Lack. This program aims to help users fall asleep sooner and reduce wakefulness throughout the night, actively improving sleep rather than just tracking it.

### What kind of sleep data does THIM track?

THIM tracks your sleep quality throughout the night, including detailed information on sleep stages and periods of wakefulness. It also provides a unique sleep efficiency score for each night, similar to algorithms used in sleep clinics.

### How accurate are THIM's power naps?

THIM determines when you fall asleep to the nearest minute, allowing for precisely 10-minute power naps. This accuracy is designed to ensure you avoid sleep inertia upon waking, maximizing the restorative benefits of short naps.

### Can THIM help me wake up feeling better?

Yes, THIM features a smart alarm that aims to wake you from a light stage of sleep. This contrasts with waking from deep sleep, which can be unpleasant, and is intended to help you feel refreshed and ready for the day.

### Is THIM available on Android devices?

Based on the provided data, THIM currently supports iPhone and iPod devices. Information regarding Android compatibility is not available in the current data.

### How often is THIM updated?

The latest version of THIM is 1.4.3, and it was last updated on April 11, 2024. This indicates a relatively active development cycle for the application.

### What is the age rating for THIM?

THIM has an age rating of 12+. This suggests the content and features are considered appropriate for users aged 12 and older.

### Does THIM have ads?

No, THIM does not contain advertisements. The application is free to download and use without any ad interruptions.

## Version history (last 5 releases)

### 1.4.3 — 2024-04-11

minor bug fixes and improvements

### 1.4.2 — 2021-11-27

Updated help videos

### 1.3.8 — 2021-10-04

Updated with advanced sleep tracking feature

### 1.3.3 — 2021-07-23

THIM battery check now set to 80% before an activity can be started.

### 1.3.2 — 2021-05-13

Minor bug fixes

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## More apps by Re-Time Pty Ltd

- [retimer](https://appshunter.io/ios/app/retimer/id6475566801)
- [retimer Ring](https://appshunter.io/ios/app/retimer-ring/id6741458213)

All apps by Re-Time Pty Ltd: https://appshunter.io/developer/637379603

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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 2026-06-05.*