The low dose of Seroquel you'll need for sleep won't cause weight gain. I have been able to lose on it. Hubby too. Trazodone is good for sleep too; my doctor says Seroquel is better for bipolar. Cocosurviving is right though; you'll get 200 answers. I would avoid benzo's. You will indeed build up a tolerance, and they will be ineffective. You can get rebound insomnia. Talk to your pdoc about the input you're getting. Good luck to you.