A childhood belief about people

I used to believe, until I was probably twelve or so, that a "deathbed" was an actual piece of furniture. When I was really young, I thought it was a bed that could kill you (like the myth of Procrustes), and when I was preteen-aged, I thought it was a bed that people bought specifically to die on, when they knew their time was running out. Either way, I thought it was an incredibly morbid concept.