Can't maintain a particular sleep cycle for more than a week Trouble falling sleep, but once asleep I'll sleep for 8-9hrs If I go to bed at 10pm, sometime I would be laying still on bed eyes closed for hrs only to fall asleep at 4am and then I would wake up at 1pm and ruin my sleep cycle Tried everything including taking proper sunlight during day time, avoiding lights after evening, not engaging in caffeine intake, I have no substance abuse problem, I am vegetarian, no drinking, no smoking, no coffee/tea I have tried melatonin but it works only like 20-30% of the time