This is not an encasement, it just covers the top and sides of your bed.
This Expanded Queen size (66 in. x 80 in.) cover helps protect you from dust mites and bacteria. It also features a waterproof layer in the cover protecting your mattress from spills and stains. This cover is white in color and has a soft feel, although it will not add much to the cushioning of your mattress it acts as a safeguard protecting you from spills, dust mites, and bacteria.
Please check the box to add the Sleepsmith Pillow Protection Cover if you would like