They did not clean my room one day! I hanged the "do not disturb" sign while I went to take breakfast, and it was for just 20 or 30 minutes, no more; then I went out of the room for all the day. At evening, when me and my family returned, we noticed that the room was not cleaned. I call to reception and they mention that the sign was on the room, so that was enough for avoid the cleaning. I explained that the sign was there just for some minutes, but they said that I doesn't matter as they make only one attempt to clean the room during the day. That is very disappointing as I have more that 20 years traveling and I also used to be a Marriott Bonvoy member before the pandemic, an this is the first time that I heard such type of argument. I can't imagine what happen with the people to decide to sleep late... in that case they never clean the rooms?