Help! My 21 month old son has started refusing to sleep during the day. He usually sleeps for 1-2 hours after lunch everyday (unless we are out), but recently he won't. He will sit in his cot for a while and chatter away, but it's not the same.I find myself getting really cross with him as it was always 'my time' to relax, read etc. Has anyone else experienced this? Any advice? he does look tired when I put him down and he isn't sleeping any longer at night. I suppose he has been getting less exercise with the poor weather, could that be it?