Stayed for two nights and on the second night found an infestation of bedbugs in the mattress. In hindsight I have no idea how I didn't spot them on the first night but I was very tired. As the reception desk closes at 10pm there was no-one to contact about switching room at that point so I ended up sleeping on the floor to avoid getting bitten.
I alerted the staff to this upon checkout who were apologetic enough, but inspecting the mattress it looked like the bugs had been there for a while. Surely this should've been noticed before letting someone into the room?
For the money paid for the room I would at least expect to be able to sleep in the bed and not end up having to google steam cleaning equipment to make sure none of the bugs made it back with me.