Absorbs and dissipates heat away from the body throughout the night to aid sleep, or for comfort on a hot day. Ideal for exercise or yoga, or even pets. Helps improve the quality of sleep by maintaining an optimal sleeping temperature, or relief the discomfort of long periods of sitting. Great for muscular pains, stress or tension - ideal for aiding comfort and sleep during flu and fevers. Simple and easy to use - simply place under your bed sheet, on your yoga mat, chair, pet's bed or wherever the cooling relief is required - no refrigeration required thanks to the stay-cool non-toxic natural gel filling