Homedics DSH3-UMPF Full Size Mattress Protector, 54-Inch by 75-Inch Breathable 300 thread count with 100-Percent cotton cover Zipper design encases entire mattress and box springs up to 18-Inch Anti-Mite: provides an effective barrier from dust mites and their waste Water resistant: protect against water spills and accidents Breathable 300 thread count with 100-Percent cotton cover Zipper design encases entire mattress and box springs up to 18-Inch Anti-Mite: provides an effective barrier from dust mites and their waste Anti-bacterial: helps your pillow stay free from harmful germs and bacteria Water resistant: protect against water spills and accidents