The Relyon Natural Plus 1600 Pocket Mattress is a blissfully comfy mattress. Crafted from the finest natural blend of wool, alpaca fleece and bamboo, you'll enjoy cosy natural comfort and truly peaceful sleep. 1600 Posturepocket™ springs support you where you need it most, whilst the knitted cover is infused with Bio-Protect probiotics to keep this mattress clean, healthy and fresh. Enjoy Free Next Day Delivery and an 8 Year Guarantee, too! Dimensions: 4′6″ x 6′3″ (135cm x 190cm)