The Sareer Aspen Mattress is all about smart design and everyday comfort. It's filled with a clever blend of three polyester fibres-one of them being a high-tech elastic fibre that helps the mattress bounce back and keep its shape. The filling feels like you're lying on millions of tiny springs, giving you just the right mix of support and softness for a great night's sleep. Even better? It's made with sustainability in mind. The polyester filling is 100% recyclable at the end of its life, which means it's good for your sleep and the planet. With pocket springs inside, each one works on its own to respond to your movements and body shape-no more rolling into the middle of the bed! Plus, the materials are naturally flame-retardant without any harsh chemicals, so you can sleep safely and soundly.