WIBU to leave my almost 4 year old in the lounge watching a film and playing Lego while I lay down upstairs with the baby? Toddler is napping too and I'm exhausted so really tempted to take this opportunity. There's also the fact I'm not supposed to leave the baby alone (SIDS risk) but she naps better when it's quieter. Tiny terraced house so can hear everything going on. I'm upstairs now settling baby and can hear DD1 chattering to herself quietly.