I try to give DS something to eat before he goes down for a sleep - a sort of 'mini-lunch'. This doesn't always happen though - like this morning he fell asleep in the pram when we went out for a walk, so he just went straight down. Same usually happens if we've been out and he falls asleep in the car on the way home. But if I can, I give him food beforehand, and then something when he wakes up too.