[quote=“Coolthulhu, post:4684, topic:42”]I think it’s more about all the simulations involved, not autosaves.
Autosaves can be slow, but they generally take amount of time proportional to number of updated items, tiles and creatures. When you sleep, you sit in one spot that’s probably mostly devoid of creatures.
Sleeping underground helps by also skipping weather checks and a great number of item checks (basements are mostly empty). Not sure about how expensive FOV checks are, but darkness and tight spaces probably help with those too.[/quote]
Critter checks, too. No wondering about whether the cougar and zoose smell you two hours in, etc.