Apologies if this has been asked somewhere before, but do back-to-back stays at the same property (2 separate reservations) count as 1 stay?

I'm curious to know for when there are promo's where you get something per stay or where you get a bonus if the stay is a weekend stay, in the latter's case when the first part of the booking was a weekend stay but the 2nd part (back-to-back) did not include a weekend night anymore, will the entire stay count as 1 or will they be considered 2 separate stays where bonus points are concerned?