BH Nocturne
Sleep Debt Tracker
Free · In‑App Purchases
How much sleep are you really missing? BH Nocturne tracks your sleep debt from Apple Watch, tells you when to go to bed and plans your day around your body clock.
BH Nocturne is a simple sleep debt tracker for Apple Watch, iPhone and iPad. Instead of yet another sleep score, it tells you plainly how much sleep you've missed over the last two weeks – and what to do about it tonight.
SLEEP DEBT
Your total sleep shortfall over 14 days. Recent nights weigh the most, and longer sleep and naps pay the debt back.
YOUR OWN SLEEP NEED
The app estimates how much sleep you need – even if an alarm wakes you every day.
TONIGHT'S PLAN
"Go to bed at 10:15 pm to pay back 40 min." With an early event in your calendar, the plan moves your wake-up time. If your rhythm is much later than your plan, the app suggests shifting bedtime gradually.
BODY CLOCK
Your chronotype (lark or owl), social jet lag, sleep regularity, heart rate through the day, daylight and overnight wrist temperature. Plus a day plan: when to do focused work, when your energy dips, when to have your last coffee and when to go to bed. The app also notices when your rhythm drifts with the seasons.
RECOVERY
A daily rating – low, moderate, good or full – with a clear list of what it's based on: last night, sleep debt, overnight HRV and breathing, resting heart rate and wrist temperature. Each measurement is compared with your own normal, with no artificial scores. When overnight breathing and temperature rise together, the app warns about a possible infection.
TRENDS
Sleep, HRV and heart rate on one timeline, with your normal range and the days outside it. Week, month or three months – plus cardio fitness (VO₂max) with plain-language comments.
WHAT SHORTENS YOUR SLEEP
Each morning tag what happened the evening before – coffee, alcohol, computer, a late workout. After a few weeks you'll see what really matters.
APPLE WATCH AND WIDGETS
Debt, plan, fitness and your day dial on your wrist. Complications for the watch face, widgets on iPhone, iPad and Mac.
PRIVATE BY DESIGN
No accounts, no ads, no analytics. The app only reads from Health – it never writes to it. Your data stays on your devices and in your own iCloud.
PRICING
Free to download, with every feature for 14 days. After that, sleep debt, tonight's plan and night notes stay free; trends, body clock, Apple Watch, widgets and reminders unlock with a one-time purchase. No subscription.
Requires Apple Watch with sleep tracking.
BH Nocturne is not a medical device and is not intended to diagnose or treat any condition.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- New large widget for iPhone, iPad and the Mac desktop: sleep debt, tonight's bedtime, recovery, cardio fitness (VO₂max), HRV, resting heart rate and 14 nights of sleep.
- Richer medium widget: sleep debt, recovery, bedtime, HRV, heart rate and VO₂max with trends, plus 7 nights.
- New Apple Watch icon – BH series navy with a gold ring.
The developer, BRONISŁAW HONCA, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BRONISŁAW HONCA
- Size
- 7.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Languages
- English and Polish
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- BH Nocturne Full Version $7.99
- 14-day free trial $0.00
- Copyright
- © Bronisław Hońca
