I don't know if you know this, but lycra is suuuuper stretchy.
Mister sees an occupational therapist for a variety of reasons, and she recommended we set up a lycra "cuddle swing" for him at the house. The stretchy fabric presses in from all sides and is rather comforting. And the swing aspect is rather like a hammock.
It's good for vestibular input and calming.
Dialing in how much fabric you need is a bit time-consuming and not without some risk of being consumed. It is definitely worth the effort, though.