I too have a long term love/hate relationship with my bed. When depressed, I can sleep for 20 of 24 hours several days in a row, then the inevitable swing to mania which can keep me up for endless days when i fear going to bed because i know i won't get to sleep. The pdoc seems to think 500mg. of serequel will knock me out , but sometimes it doesn't and I resort to ambien 10 - 30 mg. I am very worried about getting strung out on the ambien and try to use it as little as possible. It also is quite expensive.
Here are some tips that are helping me:
Keep regular hours, even on weekends
Get up (and stay up) at the same time
Reduce alcohol, caffeine, and nicotine especially within 4 hours of bedtime.
Exercise regularly, but not close to bedtime.
Don't go to bed until you are tired
Avoid snoring spouces
dan