The Neptune Eco from the Silentnight Eco Comfort Collection features a Miracoil spring system and environmentally friendly comfort layers that allow airflow through the mattress, helping you to feel refreshed after a great night\'s sleep. Eco+ Ultraflex comfort - Eco-friendly mattress with sustainable fibres for a breathable and refreshing nights sleep, combined with a layer of Ultraflex mini-springs for enhanced comfort. Ideal for planet savers. Mirapocket support - The Mirapocket support system offers even weight distribution to assist easy movement and improve alignment for an undistrubed nights sleep. Flame retardant without the use of any chemical treatments. 782 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. Chemical Free Fire Retardancy Cover - Flame retardant cover without the use of any chemical treatments, providing a fresh and clean sleeping environment. 100% Recyclable - This mattress is 100% recyclable at the end of its life. Easy Care - No need to turn, but regular rotation from head to toe will extend the mattresses life span. 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. Single sided Firm mattress 5 Year Guarantee Made in the UK No turn mattress Dimensions: Single W: 90cm L: 190cm D: 26cm Small Double W: 120cm L: 190cm D: 26cm Double W: 135cm L: 190cm D: 26cm King W: 150cm L: 200cm D: 26cm Super King W: 180cm L: 200cm D: 26cm