Q&A: My 5 month old son today discovered that he can roll in his cot. The only problem is he won’t sleep unwrapped.. I went in there after he didn’t fall asleep 5 minutes after putting down to discover him was still wrapped and on his tummy. I then put him in again unwrapped and discovered he had wriggled all the way to the top of his cot lying quite awkwardly. I’ve been trying to have him wrapped with one arm out for a while but it doesn’t work.