I had one the whole 10 years of my first marriage, from 1981–1991. I didn’t have one the next 10 years. Then, when Rick moved in, in 2002, he brought his in. It has a thick quilted mattress cover over it, and we added a feather mattress over that. It’s heated and it’s like sleeping on a cloud. I wouldn’t trade it for the world.
In the summer you unplug it and the circulating water keeps you cool, at the perfect temperature.
@Pied_Pfeffer Sleeping directly on the mattress, even with a fitted sheet under you, isn’t so splendid. If you add the padding, it’s just heaven. It also helps if it has baffles so you don’t get tossed by waves every time the person next to you turns over.