Baby is rolling

My son just started rolling on his belly. He can’t flip back yet but I’m soooo nervous that he might suffocate in his crib. Last night I was watching him on the baby monitor. At 3am he woke up and would flip to his side and fall asleep. I was so nervous watching him I just bought him in our bed.

What are you moms doing during this time?! I feel like if my son flips and he’s so tired, he won’t move his head up or cry for me to get him. It’s so scary!