Help and suggestion needed

Noah

My LO is 8 weeks old. Lately I noticed that he would grainy, squirm a lot while he is asleep, then I go pick him up, he would stop the grunting and squirming. Recent few days. he started to show signs of rolling over so we started to use a sleep sack. The grunting and squirming get worse…I am up almost every hour at night…need some suggestion and help here. Anyone else experienced this?

Thank you!