SafeRest Lab Tested Encasements Protect Your Mattress Against Bed Bugs, Fluids and Dust MitesThrough extensive research and development, SafeRest has created a better way to prevent and help treat bed bug infestations while at the same time providing real health benefits for those who suffer from daily allergy and asthma triggers. Those who perspire while sleeping or have children, pets and incontinence will also benefit from SafeRest"s waterproof technology.Lab Tested & Certified Bed Bug Proof Our encasements were specifically designed and lab tested for bed bugs and allergy protection combining cutting edge Micro-Zippers along with breathable bed bug and dust mite proof materials. Rather than disposing of expensive mattress sets, SafeRest encasements can be applied sealing off the mattress preventing bed bugs trapped inside from escaping or entering. Over time, any trapped bed bugs inside the encasement will die of starvation due to the lack of a blood source.Soft Cotton Terry Surface - Breathable, Cool & Noiseless To keep our encasements cool and noiseless, the surface material is made with soft cotton terry back coated with a breathable, hypoallergenic and 100% waterproof membrane layer. Cotton terry naturally absorbs moisture and is completely noiseless.Exclusive 360 Secure Feature SafeRest"s patent pending 360 Secure Feature offers the ultimate in protection against bed bugs by eliminating the risk that the end zipper traveler will pull back exposing the mattress to bed bugs. Machine Washable Machine-wash with your sheets using normal household detergents that do not contain bleach. Tumble dry on low heat. Do not iron.SafeRest encasements contain no vinyl, phthalates or PVCs.