CircadiaOS: Sleep Temperature

Your bedroom, tuned for sleep.

Most thermostats run one temperature all night. Your body doesn't sleep at one. CircadiaOS reads your wearable each morning, learns the temperature your body recovers best at, and schedules four-phase nightly temperatures on the smart thermostat you already own.

HOW IT WORKS

— Calibration. For your first two weeks, CircadiaOS runs a fixed conservative schedule and observes how your body responds.

— Personalization. After calibration, the system tests one temperature setting at a time and keeps what works for your sleep, not the average sleeper's.

— Morning analysis. Each morning, your wearable sends a summary of last night's sleep. CircadiaOS computes a Sleep Quality Index against your personal baseline and uses it to refine tonight's schedule.

WHAT YOU'LL NEED

— A smart thermostat: Nest, ecobee, Honeywell, and 14 other brands supported through Seam.
— A wearable that tracks sleep: Apple Watch, Whoop, Oura, Garmin, or Fitbit.
— About two weeks for calibration before personalization begins.

THE METHOD

CircadiaOS runs four temperature phases across the night — pre-sleep, early night, late night, and pre-wake — aligned with your body's natural temperature rhythm. The schedule is sent to your thermostat before bedtime. There's no real-time tracking; the system acts before sleep, not during it.

SUBSCRIPTION

— 1-month free trial, then $19.99/month or $159.99/year.
— Subscriptions auto-renew unless canceled at least 24 hours before the end of the period.
— Cancel anytime in App Store account settings.
— Payment is charged to your Apple ID account at confirmation of purchase.

PRIVACY & WELLNESS

CircadiaOS is a sleep wellness application. It is not a medical device and does not diagnose, treat, cure, or prevent any disease or condition. Information provided is for personal informational purposes only and is not a substitute for medical advice.

Privacy Policy: https://circadiaos.com/privacy
Terms of Service: https://circadiaos.com/terms