CircadiaOSShort answer: in the Sensi app, add multiple scheduled temperature changes overnight instead of one. Cool the room for bedtime, drop it further for deep sleep, warm slightly in late night, and bring it up before your alarm. Or connect CircadiaOS and let it send a four-phase curve to your Sensi every evening.
How Sensi handles sleep schedules
Sensi smart thermostats (Sensi Touch, Sensi Touch 2, Sensi Lite) support time-based scheduling through the Sensi app. You can set up to four scheduled periods per day — typically Home, Away, Sleep, and Wake. The Sleep period sets a target temperature and holds it until the Wake period begins.
That is a single hold: one temperature from bedtime to morning. It is the same limitation you see on every smart thermostat.
Why one temperature is not enough
Your core body temperature drops as you fall asleep, reaches its lowest point during deep sleep in the first half of the night, then rises gradually toward morning. A room held at 67°F all night is slightly too warm during deep sleep and slightly too cool in the early morning hours. The research behind 60–67°F and the overnight curve.
How to build a multi-phase schedule on Sensi
Sensi's scheduling system is more limited than ecobee's or Nest's in terms of the number of schedule periods. Depending on your model, you may be able to add additional schedule points through the Sensi app.
- Open the schedule in the Sensi app. Go to your thermostat and tap the schedule section.
- Set the Sleep period. Set your bedtime temperature — around 67°F is a reasonable starting point.
- Add a Wake period timed to your alarm. Set the Wake temperature to 68–69°F, timed 30–60 minutes before your actual alarm.
- Manual adjustments for deep sleep. If your Sensi model supports additional schedule periods, add a lower setpoint about 30–60 minutes after bedtime (around 65°F) for the deep-sleep window.
Where this breaks down
Sensi's scheduling is designed for broad daytime periods, not fine-grained overnight control. If your model limits you to four daily periods, you may not be able to build a full four-phase overnight curve. And even with manual setpoints, a fixed schedule does not shift when your bedtime does.
What CircadiaOS does with your Sensi
CircadiaOS connects to your Sensi account and sends a four-phase temperature schedule every evening, timed to your actual sleep window. If your bedtime shifts, the schedule shifts with it. The four phases follow your body's overnight curve: a pre-sleep cooldown, a deep-sleep trough, a late-night rise, and a pre-wake warm-up.
On Premium, CircadiaOS reads your wearable — Oura, Apple Watch, Whoop, Garmin, or Fitbit — and runs one-variable-at-a-time experiments on the schedule. It changes one setpoint, holds it for one to two weeks, and keeps only the change your sleep data confirms. How the method works.
Sensi features that keep working
CircadiaOS manages the overnight period only. Your Sensi's daytime schedule, geofencing, and any other settings continue as normal. CircadiaOS only takes over during your sleep window.
Questions
Does Sensi have a sleep mode?
Sensi has a "Sleep" schedule period that sets one target temperature at bedtime. It is not a multi-phase overnight curve. CircadiaOS adds the four-phase curve on top of the thermostat you already own.
Does CircadiaOS work with Sensi?
Yes. CircadiaOS connects to your Sensi account and sends a four-phase overnight schedule. It works with the Sensi Touch, Sensi Touch 2, and Sensi Lite. Full compatibility list.
What temperature should I set my Sensi to for sleep?
If you are using one temperature, start around 65–67°F. A schedule that starts at 67°F, drops to 65°F for deep sleep, and warms to 68°F before your alarm tends to work better.
Related guides
- Smart thermostat sleep schedule — the four-phase approach for any thermostat brand.
- ecobee sleep mode — how ecobee handles sleep and how to go further.
- Nest sleep settings — building an overnight schedule on Google Nest.
- Honeywell sleep schedule — setting overnight temperatures on Honeywell Home.
- Best temperature for sleep — the research behind 60–67°F.
- Why do I wake up at 3am? — how the late-night warming phase prevents early wake-ups.
- Setup guide — what you need and how to get started.