The MondoKing 3D offers the highest level of comfort and support. The 10 cm thick and extremely comfortable mattress is made from 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 can be easily and compactly compressed. This particularly comfortable self-inflating mattress features a high-quality TwinLock valve, allowing 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.
The MondoKing 3D offers the highest level of comfort and support. The 10 cm thick and extremely comfortable mattress is made from 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 can be easily and compactly compressed. This particularly comfortable self-inflating mattress features a high-quality TwinLock valve, allowing 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.
in 5 offers
last seen 10 May 2026
The lowest price we last saw for THERM-A-REST MondoKing 3D XXL - Blue was $505.11 at Gogogear Travel Gear, compared across 4 retailers (last seen 10 May 2026). Prices may have changed since.
The all-time low we recorded was $180.46 on 31 May 2024.
Prices last updated 10 May 2026.
THERM-A-REST MondoKing 3D XXL - Blue
The MondoKing 3D offers the highest level of comfort and support. The 10 cm thick and extremely comfortable mattress is made from 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 can be easily and compactly compressed. This particularly comfortable self-inflating mattress features a high-quality TwinLock valve, allowing 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.
The MondoKing 3D offers the highest level of comfort and support. The 10 cm thick and extremely comfortable mattress is made from 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 can be easily and compactly compressed. This particularly comfortable self-inflating mattress features a high-quality TwinLock valve, allowing 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.
Last updated at 10/05/2026 01:47:59
Thermarest MondoKing 3D- XX Large
Free delivery
Thermarest Mondoking 3D XXL Sleep Mat - Marine Blue
Free delivery between Tue – Wed
Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad
Delivery between 14–18 May $7.03
Thermarest Mondoking 3d XX Large Sleep Mat One Size Blue
Free delivery between 19–22 May
| Brand Colour | Marine Blue - Blue |
| Construction | Stratacore thermal foam |
| Dimensions | 203 x 76 cm | 80" x 30" |
| Thickness | 10 cm | 4" |
| Packed | 79 x 26 cm | 31" x 10.3" |
Thermarest MondoKing 3D- XX Large
Free delivery
Thermarest Mondoking 3D XXL Sleep Mat - Marine Blue
Free delivery between Tue – Wed
Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad
Delivery between 14–18 May $7.03
Thermarest Mondoking 3d XX Large Sleep Mat One Size Blue
Free delivery between 19–22 May
| Brand Colour | Marine Blue - Blue |
| Construction | Stratacore thermal foam |
| Dimensions | 203 x 76 cm | 80" x 30" |
| Thickness | 10 cm | 4" |
| Packed | 79 x 26 cm | 31" x 10.3" |
