The Sareer Blackthorn mattress features superior performance polyester fillings, crafted from a highly sophisticated blend of polyester fibers, including an advanced elastomeric binder fiber. This combination ensures exceptional support and recovery.The mattress is inherently flame retardant, free from harmful FR chemicals, making it a safe and environmentally conscious choice.Sustainability is a core focus in its design. The polyester used is 100% recyclable at the end of its life and can be upcycled into alternative products, reducing environmental impact.Engineered with spiral crimped coarse and fine fibers, the mattress offers a refined structure designed for long-lasting support and recovery. It is rigorously tested to ensure outstanding performance and durability, maintaining its comfort and support for many years.The manufacturing process is tailored to provide maximum spinal support while eliminating the feeling of rolling together, ensuring both you and your partner can enjoy a restful night’s sleep.Additionally, a Gel layer is integrated into the mattress to provide a cooling, bounce-back sensation, offering a more responsive feel compared to the sink-in experience often associated with traditional memory foam mattresses.