4Sleep vs Nature's Sleep Dual Layer Ergonomic Gel Memory Foam vs Purple

4Sleep, Nature's Sleep Dual Layer Ergonomic Gel Memory Foam and Purple are included in the same product category. These models fit adjustable bed bases perfectly. Quilted foam is also a unique design featured in these trending sleep surfaces. The delivery is quick and hassle-free. These bed-in-a-box mattresses are easy to handle and unpack.