This is worth a read - it may be behind a paywall and I never understand how to get around that.Tiny hotel room, in the States we are definitely spoiled. View attachment 3352117
https://www.nytimes.com/2022/10/03/business/tiny-apartments-tokyo.html
This covers similar ground but I doubt has a paywall:
https://questionjapan.com/blog/small-japanese-apartment-design/