Comforters That Are Allergy-friendly

http://en.wikipedia.org/wiki/Down_feather

"Down feathers tend to become more allergenic as they age, as they become contaminated with molds and dust mites. Pillows provide the most common source of exposure, though mattresses, comforters, outerwear and upholstery can also cause problems. A Finnish study has shown that true feather allergies are rare, with most issues caused by dust mites.".

Just get down alternative comforters (and pillows) for everyone.

Ditch the comforter and get a nice velux blanket and a quilt or coverlet.

We bought one from Bed Bath & Beyond that can be washed. It was rather expensive, but I got tired of down, to be honest. You might try that.

The Company Store sells a primaloft/Down Alternative one. I don't have it, ours is regular down. But, everything else they sell is great quality.

I don't know what you are looking to spend, but they do have them here.
http://www.thecompanystore.com/comforters/down-alternativ...

The dust from the down comforter is normal. You can get an allergy free cover for it though. They also have covers for pillows and mattresses. Can't remember the name of the company that sells them bu you can look it up. Hope this helps.