Arrived at 1AM after a very long day. Room was 74 when i went in. Set thermostat to 68 and went to bed. Woke at 3AM hot. Looked at thermostat. Said 75 and cooling. Fan was on. So tired i just went back to bed with no covers. Got up at 7AM after tossing around and thermostat said same, 75. I took a photo and checked out and mentioned all this to the desk guy. He just said, thanks for letting us know. I said, no discount for the sauna? Nope! And btw, the beds are cheap and do not have a box spring and the sheets are poor quality. I stayed at the Holiday Inn two blocks over the week prior. They have a low end lobby and staff but the beds and sheets ten times better. To me it's all about the bed an this Marriot is a fail.