Nightmark
Your sleep story, every morning.
- Platform
- iOS 18+, Apple Watch
- Pricing
- Coming soon
Overview
- Version
- 1.0
- Category
- Health & Fitness
- Compatibility
- iOS 18.0+, Apple Watch
- Price
- Coming soon
- Privacy
- On-device only
Nightmark turns the sleep data your Apple Watch already collects into a morning summary: sleep-stage breakdowns, heart rate and HRV trends, and vitals analysed against your own baseline.
In the evening it switches to bedtime recommendations tuned to your patterns. Everything runs on your iPhone, so your health data never leaves the device.
Features
What it does well.
Morning Report
03- Morning insights
- Wake to last night's duration, a sleep-quality score, and how you compare to your own baseline.
- Sleep stages
- Splits each night into Deep, REM, Core, and Awake from your Apple Watch, so progress and gaps stand out.
- Health vitals
- Tracks heart rate, HRV, respiratory rate, blood oxygen (SpO2), and wrist temperature, each correlated with sleep quality.
Long-Term Trends
01- Insight engine
- Learns your patterns over 14 days, then surfaces trend shifts, consistency streaks, and workout-sleep correlations.
Guidance & Recovery
02- Evening mode
- After 6 PM, switches to bedtime recommendations tuned to your patterns, goals, and recent trends.
- Jet lag recovery
- Detects time-zone changes when you travel and gives recovery guidance to help you adjust faster.
See it in action
A closer look.
Understand your sleep, every morning.
Nightmark is coming soon to the App Store.
More from the studio
SparkPath
Track your mood, breathe through hard moments, and journal with intention. Private and on your device, no account.
View
ProjScan
ProjScan tells reviewers when to bootstrap, prove, or stop. Review Gate returns one decision; bootstrap is explicit. Local proof, no code upload.
View
AgentLoopKit
The local control plane for low-token, verifiable agent loops. It owns scope, gates, and completion decisions, with a token receipt on every step.
View