Please help! I have been prescribed 50 mg trazodone for insomnia. It takes me hours to fall asleep. Doctor told me to take it an hour before bed. For the past 4 nights I've taken it at 7pm. Felt tired by 8pm and go to bed. Then I'm laid there for 3 hours until I drift off? I wake in the night and I get loads of flashing images going off in my head with my eyes closed that last about 10 mins then just go and I fall back to sleep. When I get up at 7am I'm spaced out and feel tired all day? Any advice would be greatly appreciated