hotel cold
A temperature similar to that of when you are staying in a hotel/motel and use the wall-mounted air conditioner to an unnecessary extent simply because it is "free," to the point where, even with several sheets and heavy blankets, you find it practically impossible to get a decent night's sleep.
Damn, I slept like sh*t last night. This hotel room is cold. I guess you could call it....hotel cold. Hmm.