I think if I were that sensitive to light, etc. I’d be wearing a mask or something. I have never slept with a pillow over my head.
I often put a pillow over my eyes, especially when visiting another city.
Hotel rooms often have thin curtains which allow too much light in.
After I fall asleep, the pillow gets pushed up by the headboard.
Several FReepers on other threads have noted that Scalia could not have died from suffocation, as this would have resulted in burst capillaries in the eyeballs.