Can you machine wash a down-alternative comforter?

Most budget down-alternative inserts (Utopia, Bedsure, Linenspa) are advertised as machine washable, which is a key advantage over real down. Verified-purchase reviewers note you'll need a large-capacity or commercial washer and a long drying cycle to fully fluff them back up. Some branded sets that look washable still carry dry-clean guidance, so check the care tag before buying.