How Often Should You Clean Your Comforter?
There is a wide variation of how frequently people clean their bedding. Most people wash or dry clean their comforter sets every two to three weeks. This is fine unless you are allergic to dust mites.
We shed skin cells at all times and at night we shed these in our beds. Unfortunately this serves as food for dust mites. If you have allergies to dust mites, then it makes sense to keep the skins cells in your bed to a minimum. So you will want to clean your comforter set more frequently.
If you have a down comforter then having machine washable duvet covers for it lets you more easily clean your bedding while being able to add variety to the look of your bedroom at the same time. In this case the down comforter can be cleaned a lot less frequently.