Protect yourself from allergens with this Benesleep mattress encasement. The white block pattern adds a touch of style to your twin-sized bedding. Made from MicronOne material, this encasement is designed to block bed bugs and mites from infesting your space. Ideal for those with allergies, this mattress encasement is a must-have for a comfortable and healthy sleep environment. New in original packaging Never opened Covers standard and deep mattresses 78" x 80" x 17"