The 3500 Sovereign Mattress is a Medium Firm feel and is approximately 28cm in depth, this is an extremely highly rated premium mattress and from the first use you will notice a difference in quality and design. The mattress is made from a high count of premium fabric encased pocket springs, double support memory foam layers, reflex foam as well as greater edge support, finished in quilted cashmere soft touch knitted fabric. Double Support Memory Foam: Ensures the mattress better conforms to your body shape, providing extra comfort and greater support than traditional memory foam mattresses with two memory foam layers. Reflex foam offers rebound support to allow for greater spinal alignment and further aid with relieving pressure. Experience the best nights sleep and say goodbye to those aches and pains and wake up feeling refreshed. The quilted design contributes to a smoother finish and surface to lie on and is naturally more temperature regulating than a tufted mattress, allowing for continuous airflow. The Pocket Springs target and alleviate pressure points on 7 key areas of your body by adjusting to your body while you sleep, relieving pressure for back, side, and stomach sleepers. The premium springs work individually according to the weight applied, absorbing noise and vibration ensuring even weight distribution to minimize sleep disturbance from partners or pets. HYPOALLERGENIC & ALLERGEN FREE. Manufactured in the UK. Fire retardant mattress. Somnior Sovereign 3500 Pressure Relief Cushioned Support Medium Firm Mattress in White Size: Double