Dream Library: Dream Incubator
Choose Your Dream Tonight
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Backed by sleep-science research on dream incubation and memory reactivation. Pick a dream, prime it before bed, and get gentle cues through the night.
Choose your dream. We help your brain get there.
Dream Library is a sleep-audio app built on one idea: the dream you fall asleep wanting is more likely to be the dream you have. Pick a dream from our library, and Dream Library guides your brain toward it, from the moment you close your eyes through your REM windows overnight. This isn't a relaxation or white-noise app — it's dream targeting, built to raise the chance tonight's dream includes your chosen theme.
HOW IT WORKS — A 4-STEP NIGHTLY FLOW
1. Priming (3-5 minutes, before sleep)
A short narrated story for your chosen dream plays while you're still awake. It plants a signature sound cue — say, gentle waves and a soft chime — and ends with a spoken intention: "Tonight, I will find myself by the sea."
2. Hypnagogic Prompts
As you drift off, your phone estimates sleep onset from motion and microphone sound level, then plays short, softening prompts tied to your dream. Sound-level metering creates temporary recorder files locally; they are rotated and deleted on a best-effort basis and never uploaded.
3. REM Cues
Later in the night, your signature sound cue replays very quietly during your predicted or detected REM windows, reinforcing the dream association.
4. Morning Check-in
When you wake, Dream Library asks: "Did the sea appear?" Answer Yes, A little, or No, and add a one-line note. Your recent seven-day check-in score summarizes those responses.
DREAM LIBRARY
• Calm — soothing, mostly free dreams: beaches, forests, gentle memories
• Adventure — adventure-themed dreams, part of Dream Library Premium
• Nightmare Rewrite — imagery rehearsal plus sound cues aimed at reducing recurring nightmares; your first dreams are free, then available by subscription or purchase
BACKED BY SLEEP SCIENCE
Dream Library is built on published sleep-science research, not guesswork. Sleep-onset (hypnagogic) prompting — the basis for Targeted Dream Incubation (TDI) — has been shown to produce themed-dream incorporation in a majority of prompted sessions in MIT Media Lab studies. Pairing a sensory cue with something learned beforehand, then replaying it during sleep, reactivates the memory — this is Targeted Memory Reactivation (TMR), the basis for the sound cue replayed during REM. Imagery rehearsal combined with TMR has also been shown to significantly reduce nightmare frequency, the basis for our Nightmare Rewrite category. In short: based on TDI and TMR research, Dream Library increases the chance your dream includes your chosen theme — it does not guarantee any specific dream.
References
• Horowitz, A. et al., MIT Media Lab — Dormio research (2020, 2023)
• Rasch, B. et al. (2007) and Rudoy, J. et al. (2009) — sensory-cued memory reactivation
• Schwartz, S. et al. (2022), Current Biology — imagery rehearsal combined with targeted memory reactivation for nightmares
SAFETY
Dream Library is a wellness app, not a medical device, and is not a substitute for professional care. If nightmares are frequent or distressing, please talk to a healthcare professional.
SUBSCRIPTIONS
Dream Library Premium Monthly is $7.99/month. Dream Library Premium Annual is $59.99/year, with a 7-day free trial. Individual dreams can also be purchased separately, from $1.99-$3.99 depending on category. Payment will be charged to your App Store account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. No cancellation of the current subscription is allowed during the active subscription period.
Terms of Use (EULA): https://dreamlibrary.soyoz.co/terms/
Privacy Policy: https://dreamlibrary.soyoz.co/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, SUNGHYUN BACK, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SUNGHYUN BACK
- Size
- 85 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 11 more
- English, French, German, Indonesian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese, Vietnamese
- Age Rating
9+
- 9+
- This app is rated 9+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Infrequent
Horror/Fear Themes
Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- Flight Over Northern Lights $1.99
- Rewrite: The Chase $2.99
- The Library at the End of Time $1.99
- Premium Annual $59.99
- Premium Monthly $7.99
- Copyright
- © 2026 Soyoz