My 3 1/2 month old boy has decided he doesn't want to sleep in the day unless he is being cuddled. This is driving me crazy as he is really tired and gets quite grumpy but refuses to stay asleep for longer than 5 minutes when he is put down in his cot. He sleeps all night but really needs to sleep in the day also. I have tried controlled crying and while this was successful the first few times, today he cried almost all day. He is totally breastfed and I think my supply is still good. Any suggestions would be greatly appreciated.