I fell on my shoulder during brazilian jiu-jitsu en its been a week now but it still hurts with some movements and i can't sleep on that side?

Possible fracture: This could be as simple as a contusion, but with a history of trauma and persistent pain, at least an x-ray is needed. See a physician immediately.

Several poss.: See an orthopedist specializing in sports medicine. There are lots of possibilities of what you might have done including: dislocated shoulder, torn muscles and/or ligaments, muscle spasm, and misaligned vertebrate, to name a few.