Generally, what I’ve seen is on travel sites like Priceline, sometimes they list a room as like “standard room” and they don’t specify and (in the fine print) explicitly do not guarantee how many beds - with some cheaper rates. Basically trying to discourage people from booking them. The thinking being if you don’t wanna end up in 1 King bed with your bro, you’ll pay the extra $13 for the explicitly 2-bed room, which is always listed as well.

Which is odd, since I feel like I always end up paying $13 extra for one king bed with my girlfriend to make sure we're not sleeping in a queen next to an empty one