Can't sleep!!

Maribel • . <3
I've had so much trouble sleeping.. I literally can stay up all night.. I feel so tired & once I lay down and get comfortable, I'm wide awake. It really sucks cuz my SO just turns around and falls asleep in seconds while I'm up all night. I hate it! Is there anything I can do to help me sleep? it's currently 5:22 am & I haven't had any sleep....