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If size and weight is not an issue then this is the sleeping mat for you. The MondoKing 3D is Thermarest's thickest, warmest and comfiest sleeping mat available. Great for any camping that involves not having to carry it. 
If size and weight is not an issue then this is the sleeping mat for you. The MondoKing 3D is Thermarest's thickest, warmest and comfiest sleeping mat available. Great for any camping that involves not having to carry it. 
Therm-A-Rest

Thermarest MondoKing 3D Large

£101.50 £145.00 30% off
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I'm a Pre-launch Product. Find out more
Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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90-day returns period

We hope that you are perfectly happy with your order from Trekitt, but we understand that you may want to return your purchase. We offer a 90 days return period from the date of purchase, and endeavour to process all returns within 48 hours of receipt.

We do not offer a free returns service. Therefore, all customers are responsible for any postage costs when returning any goods (excluding warranty returns).

For your convenience, follow here to the Royal Mail Returns Portal to arrange return postage for your items. This is not a Trekitt operated service.

The Trekitt Returns Policy Includes...
A 90 day return period and the Trekitt 2-year Common Sense Guarantee.

Exemptions
PPE (Facemasks, Climbing Equipment etc. ), Food Goods, Accessory Cord, Socks & Underwear can only be returned if they have not been worn and/or removed from their original packaging with all swing tags still attached. If there is any sign or possibility that the goods have been used, tampered with or contaminated in any way, then we cannot accept a return on the grounds of consumer safety. Zips are typically not covered under a manufacturer's warranty.

The above does not affect the Consumer Contract Regulations. Click here to read more.

Thermarest MondoKing 3D Large

Season:ZZZ Discontinued

Brand:Therm-A-Rest

Code:CDMK3DL

The MondoKing 3D is Thermarest's thickest and warmest self-inflating mat. Just undo the valve and let the foam bounce back to its original form. The core is made from Thermarest's incredibly warm foam, delivering all season warmth to assure a great nights rest any time. Saying that however, you will always need to fine tune your mat for your own comfort. The foam is sandwiched between two super tough, 75 denier Polyester fabric layers, so you can sleep soundly knowing you mat is good on any outdoor surface. However if you do manage to get a puncture we also sell the Permanent Home Repair Kit.

Vertical sidewalls on the 3D model create 20% more usable sleep surface so you have room to sleep like a starfish. 

The MondoKing is great if you are looking for an uber comfortable glamping mattress, and works wonders as a peice of super warm basecamp kit.

  • Tough
  • Very warm
  • Comfortable
  • Self-inflatable
  • Vertical sidewalls 
  • 20% more sleep surface
  • 4" of stabilised loft
  • Can be paired to other 3D models
Technical Information

Weight: 3.06kg

Top fabric: 75D reverse diamond

Bottom fabric: 75D polyester 

Sizing Information

Width: 76cm

Length: 203cm

Thickness: 10cm

Packed dimensions: 18cm x 79cm

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