L.M.
Well, I was like you when my twins went to their big boy beds. I would always just stay in the room with them. My kids went straight into twin size beds so I would alternate laying down with one and often got a quick little nap myself. If I was there to keep putting them back in their beds then they would fall asleep much faster than if I left the room. So, it actually gave me more time to get something accomplished while they slept instead of constantly worry about them not being asleep.