Olee Sleep 10 inch Gel Infused Tight Top Hybrid Pocket Spring Mattress (Twin) Composed of 3 layers includes our patented Dura pocket pocket spring Cool I-gel infused memory foam gives weight alleviation and cooling Dura soft foam provides elastic support and adds comfort Quilted in the soft, washable and durable Poly Jacquard cover Compressed, rolled and shipped in a box conveniently to your door