My 20 month old was a great sleeper up until Sunday. I have no idea what happened but from Sunday onwards he has refused his naps, only sleeping in the car on a journey home and in a pushchair on a walk, and the evenings have been awful. It took 3 hours of screaming on Sunday evening until we gave in and took him out in the car. He fell asleep within 20 minutes. So every night since we've tried getting him to sleep in his cot, failed, and taken him out in the car. I've experimented with later nap times and earlier bed times but so far no luck. He's now started waking during the night which he hasn't done in months. He was awake for 3 hours in the night last night and nothing would console him until he gave in at 5.45am and fell asleep on me. I just don't know what to try now. Any advice would be great TIA!!!