Check over your sleep habits Sleep Hygiene | University of Maryland Medical Center and make sure you are being consistent, aren't going to bed at 9:00 one night and Midnight the next or sleeping in on weekends or eating, drinking and being merry in excess. Check little things like room temperature, noise, lights, etc. and whether you are drinking enough water but not too close to bedtime, etc. Pay attention to your bowel movements and other physical issues too; I know I wake in the middle of the night and have to get up because I'm feeling fidgety only to have to go to the bathroom an hour later which solves that?