Advanced Chilled Therapy Technology: Cooling gel absorbs excess heat for up to 5 hours of continuous cooling relief. Universal Fit: Measures 20" x 12" to fit seamlessly inside standard pillowcases. Hypoallergenic & Skin-Friendly: Soft polyester cover is gentle on sensitive skin and resistant to allergens. Low Maintenance: Machine-washable cover for easy care; no refrigeration or batteries required. Versatile Use: Ideal for night sweats, hot flashes, headaches, or general overheating; also works as a cooling seat cushion. Durable & Reusable: Built to last with a leak-proof gel core and sturdy construction.