# Shuffle Sleep: Brain Shutdown — Shutdown Your Brain to Sleep

> Cognitive shuffle method app for faster sleep onset. (iPhone/iPad app by Takashi Osaka.)

- Source: https://appshunter.io/ios/app/shuffle-sleep-brain-shutdown/id1500187007 (this page in markdown: same URL + `.md`)
- Developer: [Takashi Osaka](https://appshunter.io/developer/1449408622)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 15.6 · 4 MB
- Languages: American English, Japanese
- Released: 2020-02-25
- Data updated: 2026-07-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/shuffle-sleep-brain-shutdown/id1500187007/reviews.md

## What is Shuffle Sleep?

Based on the "Cognitive Shuffle" method developed by Dr. Luc Beaudoin, a cognitive scientist at Simon Fraser University, this app is designed to help you drift off by scrambling your logical thoughts.

When your brain is busy solving problems or worrying, it stays awake. By visualizing a sequence of unrelated images—like "Sunfish," "Crocodile," or "Sweater"—you trigger the brain's natural transition into sleep mode.

[Features]

Human Narrations: Natural, soothing voices recorded by professional voice actors, not robotic text-to-speech.

Bi-lingual Support: Features both Japanese and English narrators.

Customizable Rhythms: Adjust repeat counts and silent intervals to match your personal sleep pace.

Sleep Timer: Automatically stops playback so you can sleep soundly.

Word Management: Toggle specific words on or off to create your perfect shuffle list.

## Key features

- Cognitive shuffle method
- Human narrations
- Bi-lingual support (English/Japanese)
- Customizable rhythms
- Sleep timer
- Word management


## Frequently asked questions about Shuffle Sleep

### How does Shuffle Sleep help you sleep?

Shuffle Sleep utilizes the "Cognitive Shuffle" method, which involves visualizing a sequence of unrelated images. This technique is designed to distract your logical thoughts and encourage your brain to transition into sleep mode.

### What kind of narrations does Shuffle Sleep offer?

Shuffle Sleep features human narrations by professional voice actors, providing a more natural and soothing experience than robotic text-to-speech. It also offers bi-lingual support with both English and Japanese narrators.

### Can I customize the sleep experience in Shuffle Sleep?

Yes, Shuffle Sleep allows you to customize rhythms by adjusting repeat counts and silent intervals to match your personal sleep pace. You can also toggle specific words on or off to create your preferred shuffle list.

### Does Shuffle Sleep have ads?

No, Shuffle Sleep does not contain advertisements. It is a completely ad-free application.

### What devices is Shuffle Sleep available on?

Shuffle Sleep is available on iPhone, iPad, and iPod devices.

### How often is Shuffle Sleep updated?

The latest version, 3.0.0, was last updated on May 6, 2026. While specific update frequency isn't detailed, this indicates ongoing development.

### What is the age rating for Shuffle Sleep?

Shuffle Sleep has an age rating of 4+, making it suitable for a wide range of users.

### What is the user sentiment for Shuffle Sleep based on ratings?

Shuffle Sleep has a rating of 3.7 stars from 3 ratings. This suggests a generally positive but mixed user reception.

## Version history (last 5 releases)

### 4.0.0 — 2026-07-07

New Dark Mode: Darkened the entire UI to prevent eye strain. Perfect for bedtime use without waking you up.

Ambient Playback Animation: Added a relaxing, smooth visual effect that flows on screen while your sleep sounds are playing.

Ad-Free Timer: Removed the video ad requirement for the timer. You can now set your sleep timer instantly and hassle-free.

### 3.0.0 — 2026-05-06

We have completely renewed the app to provide a better user experience.

New Feature: Added a custom word editing function. Users can now add or edit the words being read aloud to customize their cognitive shuffle sleep session.

Improvements: Refactored internal code for better stability.

Others: Fixed minor bugs and improved overall performance.

### 2.1.0 — 2020-03-22

Fixed design

### 2.0.0 — 2020-03-10

Add new English voices

### 1.0 — 2020-02-25

No release notes.

## Apps similar to Shuffle Sleep

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sleepeace](https://appshunter.io/ios/app/sleepeace/id1445341751) | — | Free | Health & Fitness |
| [Sleep Sounds & Relax, Chillax](https://appshunter.io/ios/app/sleep-sounds-and-relax-chillax/id1345463385) | 4.6 (81) | Free | Health & Fitness |
| [Isochronic](https://appshunter.io/ios/app/isochronic/id604028966) | 4.8 (67) | $5.99 | Health & Fitness |
| [mySleepButton](https://appshunter.io/ios/app/mysleepbutton/id740251957) | 4.5 (209) | Free | Health & Fitness |
| [Hisleepy: Meditation & Sleep](https://appshunter.io/ios/app/hisleepy-meditation-and-sleep/id1537629606) | 5.0 (1) | Free | Health & Fitness |
| [Sleepie: White Noise](https://appshunter.io/ios/app/sleepie-white-noise/id1623157564) | 4.6 (7) | Free | Health & Fitness |

## More apps by Takashi Osaka

- [Brain Upgrade - Relax & Focus](https://appshunter.io/ios/app/brain-upgrade-relax-and-focus/id1449408623)
- [音の乙女：音姫のようなトイレ流水音発生・音消しアプリ](https://appshunter.io/ios/app/id1454158935)
- [ヨガニドラ-マインドフルネス瞑想・睡眠の瞑想](https://appshunter.io/ios/app/id1509471436)
- [Convict Conditioning Timer](https://appshunter.io/ios/app/convict-conditioning-timer/id1527515953)
- [TABATA HIIT from official book](https://appshunter.io/ios/app/tabata-hiit-from-official-book/id1578098554)

All apps by Takashi Osaka: https://appshunter.io/developer/1449408622

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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 2026-07-19.*