Death Bed

There was something that puzzled me when we first arrived in our house. It's a furnished house, but the only brand new items were the mattresses. And rather than being on the beds, they were propped against a wall, still in their manufacturer's wrappings.
Didn't really think about it any further until chatting with a Thai friend this morning. Turns out the ever-suspicious Thais have a particular aversion to pre-owned mattresses. You see, the thing is, someone could have died in the bed, at which point their ghost inhabits the mattress. If you then rashly sleep on it, they could give you a big hug. Or something.
By the way, if you're looking for a cheap second-hand mattress...