About
This app offers personalized sleep coaching and tracking powered by on-device AI. It includes a full 12-week CBT-I program for insomnia and a smart alarm to wake you gently. All data is processed and stored locally for absolute privacy.
What's New in DreamSync
1.4
April 12, 2026
Completely rebuilt AI sleep coach Luna with 503 expert-written sleep science answers across 19 categories. Smart keyword matching now gives relevant, personalized responses. Luna references your actual sleep data in every answer. Tappable follow-up question suggestions after each response. Contextual evening check-ins and morning briefings with real numbers from your tracked data. Weekly reflections with actionable recommendations.
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FAQ
What is DreamSync's core functionality?
DreamSync acts as an AI sleep coach, offering personalized guidance, sleep tracking, and a 12-week Cognitive Behavioral Therapy for Insomnia (CBT-I) program. It focuses on improving sleep quality and understanding sleep patterns.
How does DreamSync ensure user privacy?
DreamSync prioritizes privacy by processing and storing all sleep data locally on the user's device. It has no cloud servers, requires no accounts, and ensures no data ever leaves the device.
What is the CBT-I program offered by DreamSync?
The app features a full 12-week Cognitive Behavioral Therapy for Insomnia (CBT-I) program, which is a clinically recognized, non-medication treatment for insomnia. This program is designed to help improve sleep for a significant percentage of users.
How does DreamSync track sleep?
DreamSync uses your phone's built-in sensors to track sleep when placed on your nightstand. It provides detailed breakdowns of sleep stages, efficiency scores, and detects disturbances like snoring.
What is the smart alarm feature in DreamSync?
The smart alarm intelligently detects your lightest sleep phase within a set window to wake you up gently. This aims to prevent jarring awakenings during deep sleep, promoting a more refreshed feeling.
Can DreamSync help me understand what affects my sleep?
Yes, DreamSync offers behavior correlation insights. It analyzes your tracked data to show how factors like caffeine, exercise, screen time, stress, and alcohol may impact your sleep.
Does DreamSync have ads?
No, DreamSync is completely ad-free. The description explicitly states 'No ads. Ever.' This ensures an uninterrupted user experience focused on sleep improvement.
What devices is DreamSync compatible with?
DreamSync is available for iPhone, iPad, and iPod. It is designed to work on iOS devices, offering its sleep coaching and tracking features across these platforms.