The Cassini 5000 Pocket Natural Mattress from Hyder Beds is handmade in the UK with the finest wool, silk and cashmere fillings covered with a luxurious and natural stretch fabric. The fillings are all hand-tufted and 100% natural; ideal for those who want nothing but the very best. This mattress features 5000 generous individual pocket springs to provide a soft-medium feel that offers excellent support.The Cassini 5000 has been developed specifically to help you sleep perfectly all year round. This innovative mattress is dual-sided to offer utmost comfort. In the winter months, use the natural filling side for increased heat retention. In summer, simply flip the mattress to take advantage of the opposite, cooler side.This exquisite mattress offers the ultimate in comfort and support whilst still being perfectly affordable. The Cassini 5000 and its gorgeous 100% natural fillings are a brilliant example of luxury and British craftsmanship.