Sleep better. Live better. 350-thread count, 100% Cotton sateen weave Outlast Certified Gold Liner 100% Polyester Fiber Fill Outlast technology absorbs, stores & releases heat Balances temperature around your body and maintains optimal sleep temperature. Provides thermal compatibility with your partner Hypoallergenic Its not too hot. Its not too cold... Its just right. Outlast technology, originally developed for NASA, utilizes change phase materials (PCM) that absorb, store and release heat for optimal thermal comfort. Outlast technology buffers against temperature fluctuations, helping to keep your personal microclimate steady and comfortable. Outlast technology doesn't just wick moisture away from the body it helps to proactively manage sweat before it begins. When you overheat, your body naturally releases excess heat and sweats to cool the skin. Outlast helps alleviate these spikes in skin temperature that cause sleep disturbances by absorbing and storing the excess heat. As you cool, the stored heat is released back to the body for optimal thermal comfort. This cycle continues throughout the night, so you wake up feeling more refreshed and rested. More than just temperature regulating. With a super-soft sateen weave, this mattress pad will keep your bed comfortable and luxurious. The tight-knit weave also repels traditional allergens such as dust mites, which can disrupt sensitive sleepers. Get that cool, crisp, off-the-line freshness every single night. Order your Outlast Temperature Regulating Mattress Pad today! Includes: Mattress Pad Product ID 54319376