I have a sleeping problem.

No matter how late I sleep, I always manage to wake up at around 6am or 7am. No kidding. It's sheer torture. I usually sleep like 4 to 5 hours in a day as opposed to the healthy sleeping time of 8 hours. I seriously look like a Panda bear with my eyebags. I want to be able to sleep for 8 hours straight. When? When? How? How? It's a good thing I haven't gotten sick yet but I have a great feeling that I will. DAMN YOU, SALAZAR! Puhahaha~

Any suggestions on how to normalize my body clock???