DS has just turned four months and has been on EASY since he came home from hospital. He's always been a great sleeper, waking for a feed when needed and then straight back to sleep. He naps well in the day, I always put him down awake and he self settles brilliantly.
He had been sleeping 7pm-6am with a 10pm dream feed until 3 weeks ago when it all started going wrong. Initially he was waking for a feed, which wasn't a problem, then he started waking habitually at certain times but then a few days later it went haywire. Some nights he sleeps through, then the next night he might wake every half an hour. He has also developed a habit of playing around 4am, shouting and laughing and getting very excited. We ignore this completely and leave him in his cot but it can take him an hour to settle back to sleep.
Any advice gratefully received!