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About the Product

The MondoKing 3D provides Therm-a-Rest's highest level of comfort and support. Boasting 4.25 inches (11cm) of premium foam, the ultra-cozy pad combines a plush next-to-skin feel with an 7.0 R-value to keep you warm and comfy in any condition or season. StrataCore construction provides lofty three-dimensional shape, and compresses easily to save room in your trunk or closet. The extra-comfy self-inflating pad features the easy-to-use TwinLock valve, allowing the pad to inflate three times faster and deflate five times faster. Like all Therm-a-Rest pads, the MondoKing 3D is made in market to ensure quality and minimize environmental impact. The pad includes a go-anywhere stuff sack with a built-in pump sack.


  • Large:
  • 4lb 5oz
  • 25: W x 77" L x 4.25" H
  • Packed dimensions: 26" x 10.3"
  • XXL:
  • 5lbs 8oz
  • 30" W x 80" L x 4.25" H
  • Packed dimensions: 31" x 10.3"
  • Thickness 4.25"
  • R-Value: 7.0
  • Stable Comfort: 4 inches (10 cm) of stabilized loft provides the comfort of home anywhere
  • StrataCore Construction: Yielding an impressive warmth-to-weight ratio, StrataCore uses a continuous layer of thermal foam nestled between alternating ridges of air and foam
  • Comfortable Fabric: Supple stretch knit fabric provides deluxe breathability and plush surface
  • Giant Sleep Surface: Vertical sidewalls maximize useable sleep surface
  • Incredibly Warm: Foam core delivers all-season warmth to assure a great night's rest anytime
  • Easy to Pack: StrataCore construction allows the pad to easily compress and pack away
  • Mateable: Mates perfectly with other 3D mattresses
  • TwinLock Valve: Utilizing two one-way valves, one for inflation and one for deflation, the TwinLock valve system makes setting up and breaking camp a breeze
  • Pump stuff sack included
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