Therm-A-Rest's all-new and patent-pending WaveCore construction allows the NeoAir Venture WV air mattress to offer targeted quality, performance and value for recreational users. Their unique construction creates over one hundred insulating cells, doubling the warmth of uninsulated air mattresses without the bulk, added weight or long-term durability concerns of down or synthetic fills. The Venture WV does all of this with impressively light weight and the superior stability and reliability that only a Therm-a-Rest mattress can deliver