CircadiaOSGuides and comparisons
What the research says about bedroom temperature, what the hardware options cost, and how to get most of the benefit with the thermostat you already own.
The best temperature for sleep
Why the research points to 60–67°F, why 65°F is a common sweet spot, and why the honest answer is a curve rather than a number.
Read →How to sleep cooler
Nine practical fixes you can do tonight, and the one most people miss: a temperature that changes overnight.
Read →Eight Sleep alternative
A fair side-by-side of the Pod and CircadiaOS: cost, what each one changes, and who each one suits.
Read →Chilipad / Sleepme alternative
Water pads cool one surface. Here is what whole-room control does differently, and what it costs.
Read →Connect your Oura Ring to your thermostat
Oura measures your sleep but cannot act on it. Three steps to close the loop.
Read →For hot sleepers
Covers off at midnight, freezing by dawn. Why that happens and how a curve fixes it.
Read →Free tools
Our sleep temperature calculator, Eight Sleep cost calculator, wearable temperature analyzer, couples compromise finder, cooling cost estimator and printable sleep report are being rebuilt for the new site. In the meantime, the guides above cover the same ground.