Almost every new car has dual-zone climate control these days, so why not your doona also? This thing is basically a super-powered electric blanket. Instead of just heating wires, it pumps cool or warm air through various “channels and chambers”. And there are two temperature zones.
WANTED: Air circulation reduces moisture (ew) and restricts the growth of mould and bed bugs. The air tube system also lets the bed “make itself” (if you consider straightening the doona and nothing else, “making the bed” (there’s more to it? Ed.)). NOT WANTED: Exactly how loud is the pump? The only way to find out is to buy the doona. Oh the fights you will have!