Sleeping Patterns 36weeks

I wake up every hour or hour and a half. my sleep pattern is so off. It started when I stopped working, and I'm worried once baby gets here his sleep patterns will be all messed up. I mainly get the rest of my sleep in the early morning after I get up with my husband for work.. So if I fall asleep at 11:30pm.. I'm up every hour to two hours after that. I'm mainly catching up on the rest of my sleep from 6am-10am /sometimes later. Then after that I'm still so exhausted

Is this normal? Anybody else experience this?