Now that is a classy "window seat"!! I would have my builder plan this in my home plan design.
Fabulous modern shelving unit
PARTIDESIGN | BANQIAO WOODEN APARTMENT on Behance
The Lived-In Nook | 44 Cozy Nooks You'll Want To Crawl Into Immediately
Wow! Reading a space themed adventure would be epic in here.
Ah-ha! Next office I will try something like this! A place to sit & read, but not a place I can easily fall asleep, and definitely not a place where people will steal my office for a guest room :)