It is important to ensure adequate break time before bed - no matter what you've been doing prior to going to bed, you need to give your mind and body time to relax before laying down for sleep. Whether you've been working, studying or watching T.V, quit what you're doing at least an hour before bedtime. A poll for the National Sleep Association found that 87% of respondents watched T.V within an hour of going to bed at least a couple times a week. Violent shows, news reports and vivid stories stay in our heads long after we've watched them. Watching T.V or doing anything else that stimulates the brain before bed hinders your quality of sleep.