Whisper Organics Organic Waterproof Jersey Knit Mattress Cover California King

100% GOTS- & Fair Trade-certified organic cotton. Jersey knit top and bottom for breathable softness Ultra-thin PU barrier blocks spills without noise Waterproof skirt for full side coverage Fits mattresses up to 17 inches deep Non-toxic, hypoallergenic, and vinyl-free Machine washable and tumble dry safe Packaged in reusable cotton bag Protect your mattress with the Whisper Organics Organic Cotton Waterproof Jersey Knit Mattress Cover. Crafted from 100% GOTS- and Fair Trade-certified organic cotton, this triple-layer design combines softness, breathability, and quiet waterproof protection. A 140 GSM jersey knit top and bottom surround an ultra-thin PU barrier that blocks spills without the crinkly plastic sound, while the waterproof skirt ensures full coverage and a secure fit on mattresses up to 17 inches deep. Naturally hypoallergenic and free from toxins, this cover is machine washable, durable, and packaged in a reusable cotton bag—an eco-conscious upgrade for cleaner, healthier sleep.