COMFORTABLE FIT: Made specifically for most standard pack n plays, this mattress measures 26 x 38 x 1.5 inches to provide a comfortable surface for naps or overnight sleep. TRI-FOLD DESIGN: The mattress folds up neatly into thirds for convenient storage and portability to move along with the playard as needed. KEEP IT CLEAN: Includes two waterproof, removable mattress covers that simply fold over the mattress to protect from spills and accidents for easy cleaning. FIRM W/COMFORT: The foam used here is high desnity to make it safe for your baby to sleep on and still siginificantly softer than your floors at home so they can play safely DURABLE CONSTRUCTION: Constructed from high quality, waterproof polyester that will withstand many years of use and washes! This waterproof mattress pad is perfect for your baby's pack n play. Its tri-fold design makes it easy to store while also providing a comfortable sleep surface for baby. With a cozy thickness of 1.5 inches, this mattress helps ensure baby's comfort and safety during naps or overnight stays in the playard. Two included waterproof removable covers provide added protection, allowing you to simply swap out a soiled cover for a fresh one. Measuring 26 by 38 inches, this mattress is designed to fit most standard sized playards. Its waterproof material makes clean up easy - just wipe down spills and messes. Give your little one a safe, hygienic place to rest with this pack n play mattress and its extra protection from removable, washable covers.