Thanks guys. I will try cutting back to 2 day sleeps and see how we go.

DS was doing the whole rolling, wriggling up the end of the end of the cot and babbling tonight when we put him down for his night sleep. He was tired as he had been grizzling for about an hour before hand.

DP thinks DS sees it as a game as DS laughs and giggles when we go in to check on him. Tonight we let him play it out in the cot and only went in when he cried for his dummy which he had dropped. He eventually went to sleep up the other end of the cot and we moved him down when he was asleep. Do you think he can make those associations yet that makes it a game?