DS (4 months) is v restless from 5.30am. He'll sometimes go back to sleep for a spell but mostly wriggles around and makes a real racket grunting etc. DH and I are going mad as it means we can't sleep either. I've tried everything I can think of and am now wondering if we shouldn't just buy a swinging chair and put the baby in it around that time. I've heard they're great at putting babies to sleep. But it seems they are unpopular - why? And would it be wrong to try and shut the baby up like this? just to get a couple of extra hours sleep...