The biggest Therm-a-Rest mattress ever. Are you always on the lookout for something bigger and better? Your ship has arrived with the MondoKing 3D. Simply put, the MondoKing™ 3D is the biggest Therm-a-Rest mattress ever. Vertical sidewalls create 20% more usable sleep surface so you have room to sleep like starfish. Dual valves allow compressible foam core to expand and inflate quickly when unpacked. A new and improved stuff sack with easy-carry handle is also included.
Comfort: 4 in (10 cm) of stabilized loft provides the comfort of home anywhere. 20% More Sleep Surface: Vertical sidewalls maximize useable sleep surface. Incredibly Warm: Foam core delivers all-season warmth to assure a great night's rest anytime. Self-Inflating: Dual valves allow compressible foam core to expand/inflate when unpacked; just a few breaths top it off to your ideal firmness. Mateable: Mates perfectly with another 3D mattress.
Specifications: • Bottom fabric type: 75d Polyester • Country of Origin: USA*Built of the Finest U.S. and Global Materials • Foam type: Urethane Foam • Length (Metric): 196cm • Length (Standard): 77in • Packed dimension (Metric): 18 x 66 • Packed dimension (Standard): 7.0 x 26 • R-Value: 11.4 • Size: L • Thickness (Metric): 10cm • Thickness (Standard): 4.0in • Top fabric type: 75d Reverse Diamond • Volume (Standard): 7700cu. in • Weight (Metric): 2497g • Weight (Standard): 88oz • Width (Metric): 63cm • Width (Standard): 25in
Have a question?
Talk to one of our specialists.
1 800 729-0322
November 23 to December 1:
9 AM–12 AM Eastern
Be the first to know about our new arrivals, promotions. Get 10% to 15% off your next purchase from over 100 brands!
Thank you for joining us! Your discount code has been sent to your email address.