How to get used to sleeping next to boyfriend

My boyfriend and I recently moved in together. We've slept in the same bed a few times in the past and didn't have too many issues. Well, apparently I move a lot and sprawl out in my sleep quite often without realizing. He wakes me up multiple times pushing me over and pulling the covers back to his side😅 I wake up multiple times on my own because he scoots his ass over to my side and I have to push him back😂

Any tips on how to get used to sleeping next to someone? I take melatonin every night bc I have insomnia and I just don't sleep well in general. Not sure what else I can do to make sure we both sleep well, I feel bad😕