Hello. I am a 15 year old boy, i weight 60-65 kilos, i m about 1.80 cm high. I don t have any medical history.I ve suddenly startet to sleep more, alot more. From i was born, to a few months back, i would probably sleep 6-8 hours, waking up half past eight (in the weekends). Now i sleep up to 12 hours, this night i went to bed at 2 am, and i woke up 1:30 pm. I don t feel any more tired at daytime, i just sleep much longer. Is something wrong?