Hi there,
I really think the high and sudden low was probably from stopping the Effexor cold turkey - stopping meds and can really take a toll on your body physically and mentally.
Sleep is important. I know some of the tips is to:
1. don't watch tv in bed
2. only use the bed to sleep
3. have the bedroom as dark as possible
4. a guided meditation tape may help quiet your mind so that you can fall asleep.
5. take a hot shower first
6. if you don't fall asleep in a half hour, don't lay and toss and turn, get up for awhile in another room and read a book then try going back to sleep
Those are the only other suggestions I can think of that are non-medication related.
Wishing you pleasant dreams

Tranquility