NapNap App vs SleepRing

NapNap App was created to aid a friend suffering from nightly nightmares. NapNap App helps you sleep better by quietly tracking your heart rate overnight. If your heart spikes or stress rises, it gently vibrates to help you settle. Wake up refreshed with clear insights into your sleep quality. Choose your own heart rate limits and let NapNap watch over your rest. If your heart starts racing during a nightmare, gentle wrist vibrations help ease you back into peaceful sleep, without waking you fully. No data is transmitted. All data is stored locally on your Apple Watch. Once downloaded, this app can be used offline, anytime, anywhere.

Track your sleep with Apple Watch — no buttons, just sleep. SleepRing turns the data your Apple Watch records in the Health app into a clear, beautiful analysis of your night. Sleep wearing your Watch, wake up and see everything in easy-to-read rings. SLEEP RINGS • Night duration vs. your goal • Quality score (0–100) built from duration, efficiency, restorative sleep and awakenings • Deep sleep and efficiency at a glance NIGHT STAGES • Full timeline: deep, core, REM and awake • Duration and share of each stage • Bed and wake times, time awake and number of awakenings SLEEP VITALS • Average and minimum heart rate (BPM) • SpO2 (blood oxygen) • Heart rate variability (HRV) • Respiratory rate SLEEP BANK • Sleep credit or debt over the last 7 nights • Know how much sleep you "owe" and catch up FULL HISTORY • Chart of your last 30 nights • Every night listed with score and duration • Averages and records ON APPLE WATCH • Last night's summary on your wrist: ring, stages and efficiency AND MORE • Bedtime reminder • Customizable sleep goal (5h to 12h) • Dark mode through and through REAL PRIVACY Everything is processed on your device. SleepRing has no account, no ads and collects no data at all. Your health information stays in the Health app, under your control. REQUIREMENTS To record sleep automatically, wear an Apple Watch with sleep tracking enabled. SleepRing reads data from the Health app (read-only). SleepRing is for informational and wellness purposes; it is not a medical device.