Hey, Stephenson had people living long-term in spaces that size, in Seveneves. That didn't turn out so well, but eight days isn't that long.
Tube beds could be close packed, and people could sleep in shifts. Also, one can survive just fine with just a washcloth and towel, and a source of warm water.
Tube beds could be close packed, and people could sleep in shifts. Also, one can survive just fine with just a washcloth and towel, and a source of warm water.