Can I try to show my housemate what sleep deprivation feels like?
Doesn't your housemate sleep at all?
I feel bad for him after I heard he never had two days off at the same times.
There is nothing wrong with caring for a friend. Showing him how he is, would snap him out of it.
I doubt he will look at things my way, here's hoping.
I think it is good to want your roommate to be well. It is nice to support each other.