Zippered Crib Mattress Protector/ Encasement - Bamboo Quilted, 6 Sides Fully Encased, WaterproofSTANDARD 100 by OEKO TEX certified: SH025 136940 TESTEX 52" x 28" x 6", Perfect fit for a standard crib or toddler bed mattress 100% hypoallergenic natural bamboo sleep surface 360 degree protection with a hidden zipper completely covers the top, bottom, and four sides, effectively stopping the transmission of liquids, dust, bed bugs and dust mites Waterproof and breathable 5 side completely non toxic food grade TPU waterproof layer, the non