Features of This Orthopaedic Pillow This luxury orthopedic pillow is made from sumptuous, high density 4G Aircool Memory Foam. This provides the comfort, support & sinking sensation of traditional memory foam – but with the benefit of an innovative ‘open-cell’ foam structure. This means air can flow through the 4G Aircool Memory Foam, so your head & neck never get too warm. Temperature Sensitivity for a Good Night's Sleep This cooling pillow also comes with a temperature-sensitive Coolmax cover, which disperses excess heat & moisture during the night. It has a zip fastening & can be freshened up on a 30ºC wash. Memory Foam Pillow Delivery The 4G Aircool Contour memory foam pillow is normally shipped same day on orders before 1pm & delivered within 1-3 working days.