Our Certified Organic Cotton Mattress Protectors will provide your mattress with the protection it needs to stay clean and reliable for years.  The 100% cotton jersey sleeping surface is lined with a Miracle Membrane Technology making these coverings completely safe, waterproof, and so comfortable that they could even be used as a fitted sheet. By using this protector you can eliminate the concerns of damaging and soiling your new mattress, or suffering the discomforts of breathing in toxic out gassing odor often emitted by other inferior products. Our protectors come in a variety of sizes, and fit snuggly over most standard sized mattresses. Twin XL protectors are highly recommended for use with child mattress sets or when assisting with someone using an adjustable hospital bed.