For a truly restful sleep Australian made The new Allcare Rest & Revive memory foam pillows feature a unique foam whereby the viscosity decreases with an increase in temperature. Thus it becomes more flexible the warmer it gets. Your pillow will begin to mould to a perfect shape to support you when you are settled in a sleeping position. Select from three different memory foam hardness levels: Soft, Medium, and Medium-Firm, providing you with a wide latitude of choices to suit your personal comfort needs. Each level provides excellent cervical support and helps to align your spine in a neutral position while sleeping—leaving you feeling rested and revived in the morning Our Bamboo Pillow Covers Our pillow covers are designed for long-term freshness. The fabric is made using bamboo which offers excellent ventilation thanks to the microscopic holes in bamboo fibres. Pillow dimensions: 74 cm long x 43cm wide x 15 cm height What is memory foam? Memory foam is a blend of polyurethane (a polymer made as a byproduct of petroleum refining) and additional chemicals that give the memory foam its low-resilience. It was originally developed by NASA in the 1970s for airplane cushioning and has since become one of the widest materials used in pillows.