The Ayil Natural mattress from Silentnight combines 1400 individual pocket springs with luxury fillings of Wool, Silk and Cashmere to provide a wonderful mattress that will help you drift off into a comfortable night\'s sleep. Natural wool fillings - help maintain a comfortable sleeping temperature with equisite comfort and luxurious support. Single layer of 1400 pocket springs - responds independently to weight and delivers individual support. Flame retardent - without the use of any chemical treatments providing a fresh and clean sleeping environment. Cashmere Layer - A layer of cashmere is added to the mattress to provide levels of exquisite comfort. Cashmere is historically regarded as the softest natural hair. Silk Layer - Luxuriously soft yet very strong and absorbent, making silk excellent for temperature regulation. Finest silk fibres are blended into a durable insulation layer inside the mattress, providing a sumptuous and supportive feel. Hypo-Allergenic - Dust mites cannot survive on the product, allowing a healthy environment and peaceful sleep, which is ideal for Asthma and allergy sufferers Side Stitching - Extends the sleeping area to the mattress edge by supporting the mattress walls. Chrome Air Vents - Chrome finished vents to allow good air circulation, regulate temperature and keep the mattress fresh. Flag-stitched Handles - Handles on both sides for ease of positioning. The mattress firmness rating is Medium/Firm but please note that this should be considered as a guide only. The firmness of your mattress is entirely a personal decision based on your comfort and support needs. No Turning Required 5 Year Guarantee Made in the UK Medium-Firm Mattress Dimensions:Single W: 90cm L: 190cm D: 33.5cmSmall Double W: 120cm L: 190cm D: 33.5cmDouble W: 135cm L: 190cm D: 33.5cmKing W: 150cm L: 200cm D: 33.5cmSuper King W: 180cm L: 200cm D: 33.5cm