The MondoKing 3D offers the highest level of comfort and support. The 10 cm thick and extremely comfortable mattress is made of high-quality foam and has an R-value of 8.0, making it suitable for all conditions and seasons. The thoughtfully designed three-dimensional StrataCore construction of the sleeping pad allows it to be easily and space-efficiently compressed. This particularly comfortable self-inflating mattress features a premium TwinLock valve, enabling it to be inflated five times faster. Like all Therm-a-Rest mattresses, the MondoKing 3D is manufactured domestically for quality and environmental protection reasons. The package includes a compact stuff sack with an integrated pump sack.