The best washer and dryer that will do king sized bedding is Miele’s Little Giant. You need to place a w/d set against a load bearing wall though, unless it’s on concrete floor.

Just curious, why against a load bearing wall?

In this instance, I might recommend our Speed Queen unitized if Miele is out of budget. While not without minor annoyances, it handles all but king comforters with ease, and is built like a tank. It has a shallow footprint at 28” so will look more sleek than most inside a closet. It will, however, be 27” wide and I think the Miele LiGi is 24”? enduring, correct me if I’m wrong.

Load bearing wall because it is at the end of floor joists. When you put the front loader in the middle of a joist there is more bounce, is what I'm told, sort of like a trampoline. My Miele instructions state concrete floor or load bearing wall for placement.