They may be firmer or more responsive to your body. This, in turn, may affect body temperature and humidity, as well as comfort. If you can fall asleep easily on your sofa or chair, and it is difficult to fall asleep in your own bed, you may be associating your bed with everything but sleep. These are ways to tell your body to be alert in bed, not to go to sleep. To teach patients to associate their bed and bedroom with sleep, sleep specialists advise a strategy called stimulus control, performed under the supervision of a specialist.
Patients learn to use their bed only for sleep and to follow a regular wake-up schedule.
Another effective approach involves restricting your time in bed, initially, to the number of hours you actually sleep. Then, as you can rely on sleeping these hours regularly, you increase your time in bed by 15-30 minutes per night. A less dramatic approach would be to decrease your time in bed by 30 to 60 minutes. Only get into bed when you're tired. If you don't fall asleep within 15 minutes, get out of bed.