Sleep experiments

Some beliefs about sleep are easier to test than to argue with. Each experiment takes a few nights. You write down what you expect, try something different, and then look at what happened, with your diary beside it.

What you write is saved in this browser, on this device, and nowhere else. Nothing is sent to us.

Choose one to try

For experiments beyond sleep, Behavioral Experiment from Everyday Insight walks through any prediction step by step.

Read more: The thinking side of insomnia


Everyday Insight’s tools are for education and personal reflection. They are not therapy or medical care, and they are not for emergencies. In an emergency, call 911. If you are in crisis in the United States, call or text 988.