My son is almost 15 months and he has a 2 very special blankets that he has been sleeping with since he was 6 months old, both were crocheted by family members, they have the little holes in them. He loves them, i think because he likes to put his fingers and toes in the holes. Anyway, he does not go anywhere without one of these blankets, it goes to daycare & grandma's house. The fact that we have two is nice b/c we can switch them out when they need to be washed. He will pull his blanket off the couch and lay on top of it or just carry it around, it's just a comfort, snuggle thing. Because they move around so much when they sleep and you find them in all types of positions, i would suggest just covering him with another blanket, we do this all the time. Dress him warm and he will be okay.