I actually just spent the night (~4 hours) passed out in both the first, egg-kinda-sorta chair, and the bench-type they rated the highest during a really long l

I actually just spent the night (~4 hours) passed out in both the first, egg-kinda-sorta chair, and the bench-type they rated the highest during a really long layover before going to Seoul. My advice? Avoid having to sleep anywhere in SFO if you can. At least you won't be the only one doing it, though.