Having watched CSI (that makes me an expert, ya know) I know that the bedspreads have over 100 separate DNA samples on them!
My first job when we get to hotels is to remove the bedspread.
>>I do have to ask though, how often were the bedspreads laundered?<<
In our hotel, once a month you were on a run of nothing but bedspreads and blankets.
You were required to pull about 80 spreads and blankets and drop off new ones. Actually, everyone wanted to do that job. So I would say that in a good hotel, the spreads and blankets have about a once a month rotation. Understanding that this would be 30 days with two people sleeping in a bed, nearly 100 DNA might be just right.
But that’s the chance we take staying in a Hotel.