Quoting TurtleDove9309:" My son is 2 1/2 and he has autism and sensory processing disorder. He has a fleece blanket he is very ... [snip!] ... up screaming and pulls it back. Im worries he will suffocate. Anybody know whats causing this or any ideas of how to handle it?"
He'll be fine... I can tell you from personal experience! Literally from the moment I could move my own blankets I would move them over my head and tuck them behind myself. My parents always thought I would suffocate and even talked to my doctor about it. They said we have an instinct to move and be safe as long as we have the ability to move the blankets ourselves. So as a baby we can't move a blanket but older kids can.
I STILL sleep with a blanket over my head, even in the sweltering heat I have to put a blanket over my head or I can't sleep.
So your kiddo will be fine... I did it, my parents talked to my doctor about it, and look at me, still alive and kickin ;) I even use a huge comforter and I even go so far to do something my parents call "burrito-ing" myself, where I tuck my blankets underneath me and then up over my head. It makes it look like a giant burrito in the bed. So in the Summer I will wake up dripping in sweat, hair is all sweaty, and yet... I still cover myself with my blanket!