I don't know if this helps with anyone's confidence but during a recent stay at BWV (Memorial Day weekend) after arriving to a ready room (at 11am.) My dw found a half empty bottle of milk in the fridge and a childs sock and under wear in a drawer in the bedroom. When the head of housekeeping arrived to my room for an inspection, which I asked for only a linen change as I was concerned I did not want to get bed begs! Her response was "we do a through check once a month for bed bugs on each room, so no need to worry about it." I was thinking afterwards that what if I was the lucky one to come just after the guest that brought the bed bugs and it was some 20 days until the next inspection.... Your best bet is to check out the bed yourself each time you check in.