Research
Why 8 hours is a myth
It's not about the hours, it's about the cycles. Understanding the 90-minute rule.
The first intelligent sleep system that composes soundscapes based on your real-time biometrics. No wearables required.
Join 50,000+ restful sleepers
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Original Soundscapes
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Blue light, irregular schedules, and anxiety loops destroy your circadian rhythm. You're not just tired; you're fundamentally out of sync with your biology.
A clinically-backed protocol to restore your natural rhythm.
We establish your baseline using non-invasive acoustic tracking. No watches, no rings. Just your phone on the nightstand.
Our AI generates a custom "Wind Down" routine and soundscape based on your stress levels and daily activity.
Weekly reports and smart alarms adjust your wake-up windows to ensure you build a sustainable, lifelong habit.
An ecosystem of sound, tracking, and science engineered to force-quit your brain's background processes.
Audio that evolves in real-time as you drift off.
Uses sonar technology to track breathing rates.
Alarms that only trigger during light sleep.
22:30 - 23:00 • Breathing
Target: 7h 30m • Deep Rest
06:30 - 07:00 • Gentle
A complete toolkit for the modern sleeper.
Record your dreams immediately upon waking with voice-to-text to analyze subconscious patterns.
Track your cumulative sleep debt and get custom schedules to pay it back safely.
Layer rain, thunder, fan, and pink noise to create your perfect background environment.
Discover if you're a Wolf, Bear, Lion, or Dolphin and optimize your day accordingly.
Sessions designed by clinical psychologists to reduce anxiety and induce sleep.
Not just for sleep. Use our soundscapes during the day to improve deep work sessions.
| Features | Sleeply | Wearables | White Noise Machines |
|---|---|---|---|
| Comfort | Nothing to wear | Bulky on wrist | N/A |
| Smart Alarm | Phase-based | Phase-based | |
| Sound Variety | Infinite Gen-AI | None | Static Loops |
| Price | $49/yr | $300+ | $50 - $100 |
Our library includes 3D spatial audio recorded in the world's most peaceful locations, mixed with binaural beats to lower brainwave frequency.
Neuroscientist, PhD
"Sleeply's algorithms align perfectly with the latest research on circadian entrainment."
Somnologist
"The non-invasive tracking is a game changer for patient compliance and data accuracy."
Behavioral Psychologist
"Building a sleep habit is hard. Sleeply's gamification makes it genuinely engaging."
Join the movement reclaiming their nights.
We believe biological data is sensitive. That's why Sleeply processes all audio locally on your device.
Identify trends over months, not just days. See how late caffeine, alcohol, or screen time affects your REM cycle duration.
"The smart alarm is black magic. I used to hit snooze 5 times, now I actually wake up feeling alert. It's wild."
"I'm a data nerd, so the sleep debt calculator is my favorite feature. It gamifies getting to bed on time."
"Better than my $200 white noise machine. The way the sound fades out as you fall asleep is seamless."
It's not about the hours, it's about the cycles. Understanding the 90-minute rule.
New studies show caffeine can disrupt deep sleep even 10 hours after consumption.
Why 65°F (18°C) is the scientifically optimal temperature for rest.
Cheaper than a single cup of coffee per month.
Less than $0.14 per night
No. Sleeply uses ultra-low power algorithms optimized for OLED screens. It consumes less than 5% battery overnight, though we recommend charging while you sleep.
Not at all. We use the microphone and accelerometer in your phone (placed on your mattress) to track movement and breathing patterns with clinical accuracy.
Yes. Sound analysis happens locally on your device's processor. No raw audio ever leaves your phone or is uploaded to our servers.
Yes! The Pro plan includes "Partner Sync" which filters out your partner's movements and snoring to ensure your data remains accurate.
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