Jack99
Adventurer
I did look this up and it does say "rest" not short or extended. In our game, we assumed the RAI meant extended rest, so that's how we've been playing.
Somewhere I thought I read that they intended to say extended rest, but I can't find it anywhere....
You will have to take my word for it, since I do not have a link handy, but
1) its been clarified a few times that it means short or extended rest.
2) the designers themselves play with a short rest resetting the death save counter.