My one month old typically wakes up at the very least every 4 hours to eat at night. He’s never really gone over that. He woke up after 4 hours but when i tried to feed him he’d suck a little and then fall asleep. I woke him up a few times but eventually he decided that he’d rather be sleeping. I tried changing him, then offering him food again. He didn’t wake up. So I laid him in his bassinet and went to the bathroom. I wasn’t super quiet about it but we aren’t quiet when he naps during the day so he was able to sleep through it. So when I came back to the bedroom I picked him up and he still wouldn’t wake up. Should I be concerned