hello im 16 years old and ever since i was 15 i did this sometimes ok i get really tired all the time after school i come home and sleep for about 3 hours sometimes i wake up at 8 and bludge around untill like 11 or 12 till i get tired and go to bed i was wandering if u guys know what i could do or what makes u sleep really well. coz sometimes i wake up at 3am and then i cant go bak to bed or could i have an illness ???