Tips?

I’m a first time mother and my son is currently two months old. He just learned how to roll over tonight. He was previously sleeping in a bassinet but he just outgrew the weight requirement, so we switched him to a pack and play in our bedroom. Tonight he rolled himself over into the edge of the pack and play. I’m just afraid that he’s going to suffocate himself. Any words of wisdom or advice? Also my son saw his doctor today and she said his head looked flat on one side. He favors that side when sleeping. Any advice on how to get him to switch sides?