I use a red light mat. It is hard to tell if it does anything because I do a lot of things for recovery.
Discussion
I think I've seen something like that on Amazon. They have some mats you can lay on, others are like a sleeping bag.
I want to believe. Lol. The other side of me thinks that would be super hot and possibly electrocute me. I see the mat and I think of my flat top stove lighting up.