140 TINY Tokyo Apartments https://www.youtube.com/watch?v=6SwvtBxxp2w
A Capsule_hotel is OK for someone that wants a place to sleep, but is far off from being like a proper hotel room. Its just a modern version of the old Flophouse.
https://en.wikipedia.org/wiki/Capsule_hotel#Criticism_and_disadvantages
This super tiny Tokyo apartment may just be one of the smallest places we have seen so far, yet at 8 m2 (82 ft2) https://www.youtube.com/watch?v=TYVJbupG3Xg
Even this is a little better than being in a cap-hotel.
People really need a one, 2 or 3 room box to start to feel more comfortable.
https://en.wikipedia.org/wiki/Shipping_container_architecture
https://en.wikipedia.org/wiki/Modular_building
https://en.wikipedia.org/wiki/Tiny-house_movement
"Tiny homes range typically between 100 and 300 square feet (9.3 and 27.9 m2)." https://en.wikipedia.org/wiki/Tiny-house_movement#Size_of_homes