This traditional Memory Foam open coil Bonnell spring unit contains a layer of high-density open-cell next-generation visco-elastic memory foam which molds and shapes the sleeper's body, relieving pressure from building across the body. It supports your neck, shoulders, hips, legs, and overall body for a comfortable night’s sleep. The top panel has a cool touch micro quilted super soft fabric providing a soft and plush sleeping area for the sleeper to enjoy a soothing and relaxing night’s sleep. We use the highest quality of memory foam to offer superior quality and comfort to improve overall support for your body relieving pressure points for excellent anatomical support. The total mattress depth is 8" an inch deep base (approximately 20cm). The fabric of the mattress has been carefully designed to be breathable allowing the airflow to pass through the mattress and keeping it cool, fresh, and odor-free with hypoallergenic and anti-dust mite fillings. With our in-house technology and industry-leading packaging systems, your mattress will arrive vacuum-packed, rolled, and boxed. We recommend that you do not leave the mattress rolled and boxed for more than 7 days after receipt once the mattress has been taken out of its packaging leave it for 24 to 48 hours allowing it to expand to its original size.