Sleep researchers and doctors claim that your bed itself should be the bell. It will be easiest for you to fall asleep if you don't spend any time in your bed u

Sleep researchers and doctors claim that your bed itself should be the bell. It will be easiest for you to fall asleep if you don't spend any time in your bed unless you are actively trying to fall asleep. No reading a book before you sleep, no checking your email in the morning, etc. They prioritize it to the point that, if you are lying in bed trying to sleep at night for more than 20 minutes, you should get up and spend some time relaxing somewhere else.