"i have taken trazodone off and on for about five years. as long as i&#039;m taking it every night it works just fine, but if i skip a night i won&#039;t sleep at all. no physical dependence, but if i&#039;ve been taking it regularly and then stop i can&#039;t sleep more than an hour a night for at least a week. works well when taken nightly, but has a horrible rebound effect."