If pain, illness, or hormonal changes are behind your tossing and turning, chances are you will be able to sleep again once those issues are resolved. But sometimes transient bouts of insomnia become real problems of their own, especially if you've developed anxiety or fear about going to bed and being unable to sleep.
Insomnia fuels a cycle of anxiety. Say, for example, you're worried about losing your job. You go to bed, but toss and turn for an hour. At 3 a.m. you wake up, your mind racing with nervous thoughts about work.
This is precisely why you shouldn't lie in bed all night waiting to fall asleep, experts agree. It's important to get up and do something else, in another room, until you're truly sleepy, and to keep negative thoughts and worries out of the bedroom.