A mattress encasement can have a generally rectangular shape and may include cover for surrounding all six sides of a mattress. The cover can include a top side and a bottom side, a left side, a right side, a head portion and a foot portion. The cover can also include a zipper extending along a length at least one of the left side, the right side, the head portion, and the foot portion. The zipper can have a length sufficient to receive the mattress. The mattress encasement can also include a removable top layer having a first layer and a second layer. The second layer of the top layer can waterproof. The mattress encasement can also include a fastening means for removably coupling the top layer to the cover. The top layer can extend substantially across the top side of the cover.
