The best mattress protectors

When you buy through our links, Business Insider may earn an affiliate commission. Learn moreThe best mattress protectors keep your mattress safe from liquids, allergens, and dust mites. Full encasements can even protect from bed bugs.Lightstar59/Getty ImagesA mattress protector is a non-negotiable, a safeguard against liquid damage, sweat, allergens, and pet accidents while keeping your mattress warranty intact. The best mattress protectors provide a completely waterproof barrier that