Hello, I am having the same problem. We took Landon out of his crib at the age of 2 because he starting climbing/falling out of it and not understanding the whole you'll bump your head scenario. We put him into a toddler bed which he absolutely loved in the beginning. When he came home from being gone he would run and get into it and pull the covers up and just lay there and he pretty much stayed in it the whole night. Then he outgrew it really fast. We now have him in a queen sized bed just sitting on the floor with a box spring so that if he falls he won't have far to fall but I still put pillows and blankets down because of the hardwoods. But the problem that we are having is he always wants to crawl under the fitted sheet and lay there with all the covers on top of him. I think he feels safe under there but I am afraid that he will suffocate himself. People do not understand that children on the spectrum like to be closed in for some reason, it is there sanctuary. So I too am looking for a tent that is sturdy just for him to have as his safe haven.
I had read somewhere a long time ago about someone having a large crib like bed made for their older child (4-5) to sleep in not only for his safety but because it was the only way the child would go to bed. Hmm maybe it‘s something we should invent.
Good Luck with your search.
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