Hi, I seem to have broken sleep for a long time. Say if I fall asleep or go to bed around 22, then I d wake up naturally around 3 am or 4 am,even earlier. It s rather difficult for me to have a 7-hour sleep, but sometimes if I was super tired, I could sleep for ten hours What should I do about the broken sleep? Sometimes after I wake up, I can t go back to sleep, or it takes an hour or two Thanks