Thermarest MondoKing 3D XXLarge

The Thermarest MondoKing 3D XXLarge is designed to make nights in your tent or under the stars more comfortable by combining extra space with solid insulation. With its generous dimensions, this sleeping pad gives you room to stretch out and reduces the feeling of rolling off in the night.

Constructed in a 3D box-model shape, the pad stays snugly beneath you, minimizing cold spots and shifting. At 11 cm thick, the foam core provides a stable, cushioned surface, while the 100% polyester top adds a soft, durable touch. When it’s time to pack up, the pad compresses down to a 79 x 26 x 26 cm bundle that still fits neatly in most backpacks, making it a good choice when weight isn’t the only priority.

With an R-value of 7, this pad delivers high thermal resistance, meaning it helps retain body heat in colder conditions. The closed-cell foam core traps air in tiny pockets, preventing heat loss to the ground and keeping you warmer through the night.