---
product_id: 654753822
title: "Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad"
brand: "therm-a-rest"
price: "3772 Lei"
currency: RON
in_stock: true
category: "Therm A Rest"
url: https://www.desertcart.ro/products/654753822-therm-a-rest-mondoking-3d-self-inflating-camping-sleeping-pad
store_origin: RO
region: Romania
---

# TwinLock dual valve system 7.0 R-value extreme insulation 4.25-inch ultra-thick comfort Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad

**Brand:** therm-a-rest
**Price:** 3772 Lei
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your outdoor sleep game—comfort that commands the campsite.

## Quick Answers

- **What is this?** Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad by therm-a-rest
- **How much does it cost?** 3772 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/654753822-therm-a-rest-mondoking-3d-self-inflating-camping-sleeping-pad)

## Best For

- therm-a-rest enthusiasts

## Why This Product

- Trusted therm-a-rest brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pack & Go Ready:** Compresses to a compact 26x10.3 inches with included PFAS-free sack—perfect for the modern adventurer.
- • **Effortless Setup:** TwinLock valve system with separate inflation and deflation valves for quick camp transitions.
- • **Year-Round Warmth:** 7.0 R-value StrataCore insulation keeps you cozy in the coldest conditions.
- • **Sleep Like Royalty:** Experience unmatched 4.25-inch plush cushioning that cradles you under the stars.
- • **Maximized Sleep Surface:** 3D vertical sidewalls expand usable space for luxurious comfort and stability.

## Overview

The Therm-a-Rest MondoKing 3D is a premium self-inflating camping sleeping pad featuring a 4.25-inch thick comfort layer and advanced StrataCore construction for superior insulation (R-value 7.0). Its TwinLock valve system simplifies inflation and deflation, while 3D vertical sidewalls maximize usable sleeping surface. Compact and portable, it rolls down to 26x10.3 inches and supports up to 1440 pounds, making it ideal for car camping, basecamps, and even home guest use. Made in the USA with a limited lifetime warranty.

## Description

Sleep like camp royalty with the ultra luxurious Therm-a-Rest MondoKing 3D Self-Inflating Foam Camping Mattress. With couples in mind, the pad can be paired with a second MondoKing for a double sleeping pad. The pad offers an R-value of 7.0 for maximum year-round comfort thanks to thick thermal foam and StrataCore construction, which uses a continuous layer of thermal foam nestled between alternating ridges of air and foam (R-value measures the material’s ability to insulate; the higher the R-value, the warmer the sleeping pad). Perfect for car camping, expedition basecamps, RVs, and boats, it also makes an excellent guest bed at home. The stable mattress offers maximum stability, cushioning, and protection from rocks, roots, and uneven ground surfaces. All styles have dual valves that allow compressible foam core to expand and inflate when unpacked, and all styles mate perfectly with other Therm-a-Rest MondoKing mattresses with a similar style. Equipped with the TwinLock Valve the sleeping pad has dedicated "in" and "out" valves to make inflating and deflating the pad easier than ever. The MondoKing 3D is 4.25 inches thick inflated and include a stuff sack that can also be used as a pump sack (for easier, breath-free pad inflation). Made in the USA. Manufacturer’s limited lifetime warranty.

## Features

- Camp like royalty with the MondoKing 3D, an ultra-comfy 4.25-inch thick sleeping pad with a stretch knit fabric layer for resting better under the stars
- Utilizing two one-way valves, one for inflation and one for deflation, the TwinLock valve system makes setting up and breaking camp a breeze
- 7.0 R-value insulates in the most extreme conditions using StrataCore construction that utilizes a continuous layer of thermal foam nestled between alternating ridges of air and foam
- 3D construction creates vertical sidewalls to maximize useable sleep surface and comfort
- StrataCore construction allows the pad to easily compress and pack away to a compact 26x10.3 inches in included PFAS-free storage sack
- For best performance, inflate your self-inflating pad with air by breath or included pump sack and leave the mattress fully inflated for 2-4 hours before your first use
- Large size measures 77x25x4.25 inches, 26x10.3 inches rolled, and weighs 4.38 pounds; stuff sack/pump sack included; limited lifetime warranty; made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CQRVLKHB |
| Additional Features | Anti-Deflate, Insulated, Portable |
| Best Sellers Rank | #32,371 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #75 in Camping Air Mattresses |
| Brand | Therm-a-Rest |
| Brand Name | Therm-a-Rest |
| Capacity | 1440 pounds |
| Color | Marine Blue |
| Construction Type | Self-Inflating Foam |
| Cover Material | Polyester |
| Customer Reviews | 4.1 out of 5 stars 79 Reviews |
| Fill Material | Urethane Foam |
| Global Trade Identification Number | 00040818140208 |
| Included Components | Pump Sack |
| Item Depth | 4.25 inches |
| Item Dimensions | 77 x 25 x 4.25 inches |
| Item Dimensions L x W x Thickness | 77"L x 25"W x 4.25"Th |
| Item Display Dimensions | 32 x 11 x 9 inches |
| Item Firmness Description | Adjustable |
| Item Thickness | 4.25 inches |
| Item Type Name | Camping Mattress |
| Item Weight | 4.4 pounds |
| Manufacturer | Cascade Designs Inc. |
| Manufacturer Part Number | 14020 |
| Manufacturer Warranty Description | Limited lifetime warranty. |
| Material | Polyester , Polyethylene (PE) |
| Material Type | Polyester, Polyethylene (PE) |
| Mattress Comfort Layer Material | Comfort Foam |
| Model Name | MondoKing 3D, L - Marine Blue |
| Model Number | 14020 |
| Number of Items | 1 |
| Number of Layers | 3 |
| Number of Packs | 1 |
| Product Benefits | Ultra-comfort, easy inflation, thermal insulation, 3D construction, compressible, stable. |
| Product Care Instructions | Spot Clean |
| Product Dimensions | 77"L x 25"W x 4.25"Th |
| Shape | Rectangular |
| Size | Large - 77 x 25 Inches |
| Special Feature | Anti-Deflate , Insulated, Portable |
| Specific Uses For Product | Sleeping Pad |
| Target Audience | Adult |
| UPC | 040818140208 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
| Weight Capacity Maximum | 1440 pounds |

## Product Details

- **Brand:** Therm-a-Rest
- **Color:** Marine Blue
- **Included Components:** Pump Sack
- **Item Weight:** 4.38 Pounds
- **Material:** Polyester, Polyethylene (PE)
- **Product Dimensions:** 77"L x 25"W x 4.25"Th
- **Size:** Large - 77 x 25 Inches
- **Special Feature:** Anti-Deflate, Insulated, Portable
- **Specific Uses For Product:** Sleeping Pad
- **Target Audience:** Adult

## Images

![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 1](https://m.media-amazon.com/images/I/71+BNN310+L.jpg)
![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 2](https://m.media-amazon.com/images/I/91XIxr-N0ML.jpg)
![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 3](https://m.media-amazon.com/images/I/51UsKPM6CdL.jpg)
![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 4](https://m.media-amazon.com/images/I/51OtiXo+AyL.jpg)
![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 5](https://m.media-amazon.com/images/I/81SdJoZKw-L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Frequently Bought Together

- Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad
- Therm-a-Rest NeoAir Micro Electric Air Pump for Sleeping Pads ,Black
- Therm-a-Rest Synergy Luxe Mattress Sheet

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-09-12*