The Cerise Eco Mattress features environmentally friendly comfort layers which allow natural airflow for a more invigorating and refreshing nights sleep. The unique zoned miracoil springs provide no roll together for less partner disturbance and zoned support where you need it most. Flame retardent without the use of any chemical treatments providing a fresh and clean sleeping environment. Miracoil Spring System - Silentnight’s unique and exclusive spring system. Even though people come in all shapes and sizes this clever spring system - exclusive to Silentnight - unlike ordinary springs that are circular, has its own unique shape that spreads your weight evenly across the bed relieving the pressure on the most painful part of your body such as your lower back. It offers zonal support for perfect spinal alignment. This system eliminates roll-together so less partner disturbance. Eco Comfort Layer - Featuring natural materials engendered from sustainable sources, the Eco Comfort layer is fully recyclable and highly breathable, allowing air to pass through for an invigorating and refreshing night\'s sleep. Fibres have been intelligently constructed vertically to offer extra support and help you move freely through the night. Zoned Support - Enjoy head-to-toe zonal support to provide total spinal and body support. The mattress is firmer in areas where greater support is needed, such as the lumber region and softer in other areas, surrounding the hips and shoulders. Hypo-Allergenic - Dust mites cannot survive on the product, allowing a healthy environment and peaceful sleep. Quilted Cover - Quilted sleeping surface and mattress borders to provide soft cushioning and added comfort. 100% Recyclable - This mattress is 100% recyclable at the end of its life. Double Sided Regular Turn Mattress - Turn over and rotate your mattress once a week for the first 3 months and then once a month thereafter to help the fillings settle evenly. The mattress firmness rating is 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. Firm mattress 5 Year Guarantee Made in the UK Dimensions: Single W: 90cm L: 190cm D: 27cm Small Double W: 120cm L: 190cm D: 27cm Double W: 135cm L: 190cm D: 27cm King W: 150cm L: 200cm D: 27cm Super King W: 180cm L: 200cm D: 27cm