I wanted to come back because i noticed your kids are a bit younger than mine are. I would suggest what the pp said. Lay down in a room with a door, with the babe while they sleep, the 2 year old can be occupied with anything you wish-juice, tv, a movie, a special toy, whatever you feel comfortable with. You will at least be able to rest, which is better than nothing sometimes. I have done this lately. I'll go lay down on my sons bed, close the door, and let the two play on me. I know they are safe since the room is child proofed, plus i'm not in a super deep sleep since they are in there making noise. It helps on those days when i just can't keep my eyes open one more second.