I didn’t, but I feel this will create more problems than it will solve
Hands are either able to freely move, but inside a narrow space, which will traumatize them and extend muscles, or they are squeezed between the chamber walls and those kind-of-filler-pillows, restraining motion.
Also, those who market it as a phone-comfortable bed clearly forget that phones and large narrow holes are a terrible combo. Oh, and for God’s sake, forget about ever eating ANYTHING on there.