Uncovered mattresses facilitate the perfect conditions for the breeding of dust mites which can cause allergies, asthma, eczema and rhinitis. These dust mites, which are invisible to the naked eye, live on the millions of skin cells and body fluids that humans expel every night. Protect yourself as well as your mattress by covering your mattress and boxspring with southern textiles' bed bug prevention pack.10 Year limited warranty Mattress protector: Top surface, sides and back panel- 100% Polyester, Backing- 100% Polyurethane, Box spring - 100% Polypropylene Includes invisicase easyzip mattress encasement for 12-17 mattresses and box spring wrapper fits up to 9 Complete surround mattress encasement to protect from stains, moisture, bed bugs and dust mites All sides constructed with high performance 100% polyester face fabric Box spring wrapper - Nonwoven zippered box spring encasement Contents are packed in a suitcase handle bagCountry of Origin: China Finish: White Length: 80 Size: King Width: 78