Baby will only sleep on nursing pillow

So I have tried moving her when she’s drowsy, moving her when she is fully asleep, moving her when she stops tossing and turning, nothing works. She wakes up right away (no cry, just being awake but then half an hour later gets really cranky, i am positive she is exhausted by then) She sleeps really well on the nursing pillow and I just put that on her bassinet, but sometimes I am worried her neck doesnt get enough support (she sleeps sideways on the nursing pillow). I check on her every 2-5 minutes but I want to slowly transition so that I don’t have to keep worrying and can go on and about my day.. she has been doing that for about two weeks now.. any advice?