Hello I need help

Donna

I’m a first time mom my son is a premature baby and he just turned 3 months just yesterday he’s acting weird normally he crying through out the night for a bottle not letting me and my bf sleep tonight he was fed around 6 or 7 by bf and then he went to sleep and has been asleep ever since I had my alarm set for 4 hours it went off around 10 it’s almost 1am should I wake him up to feed him or let him sleep ?