We currently offer a year-round weight of comforter. Most customers prefer wool comforters because of their weight. They feel like something is covering you. Wool bedding is naturally resistant to mold and dust mites. Wool comforters are not machine-washable, so be sure to keep your comforter protected with a duvet cover. Wool will naturally freshen and the fibers will expand when hung in direct sunlight. We recommend spot cleaning only for all wool comforters. Agitation and heat will cause wool to bind.