 Then on the night you can't sleep, this is something almost all experts agree on, whatever you do, don't stay in bed. Get up, do something relaxing, not on your phone, until you feel sleepy again, and then get back in bed. Now, if you're getting at least seven hours of sleep a night, but you're still not feeling rested, then you should probably consider getting checked out. Might be something else going on there. I'm Dr. Sanjay Gupta, helping you live a better life.