---
product_id: 654753822
title: "Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad"
brand: "therm-a-rest"
price: "€ 499.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Therm A Rest"
url: https://www.desertcart.nl/products/654753822-therm-a-rest-mondoking-3d-self-inflating-camping-sleeping-pad
store_origin: NL
region: Netherlands
---

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

**Brand:** therm-a-rest
**Price:** € 499.07
**Availability:** ✅ In Stock

## Summary

> 🛶 Elevate your outdoor sleep game — because roughing it shouldn’t mean roughing up your rest.

## Quick Answers

- **What is this?** Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad by therm-a-rest
- **How much does it cost?** € 499.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/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 Light, Camp Farther:** Compresses to a compact 26x10.3 inches in eco-friendly PFAS-free sack, perfect for minimalist pros.
- • **Effortless Setup & Breakdown:** TwinLock valves separate inflation and deflation for quick, no-fuss camp transitions.
- • **Conquer the Cold with 7.0 R-Value:** StrataCore thermal foam layers lock in warmth for year-round camping confidence.
- • **Sleep Like Royalty Under the Stars:** Ultra-plush 4.25-inch thickness with stretch knit fabric for cloud-like comfort anywhere.
- • **Maximized Sleep Surface with 3D Design:** Vertical sidewalls expand usable space—because your comfort deserves room to stretch.

## Overview

The Therm-a-Rest MondoKing 3D is a premium self-inflating camping sleeping pad featuring a 4.25-inch thick, 3D vertical sidewall design for maximum comfort and usable surface area. Its 7.0 R-value StrataCore construction provides superior insulation for extreme conditions, while the TwinLock valve system enables fast, hassle-free inflation and deflation. Lightweight and compressible to a compact size with an included pump sack, it’s designed for serious campers seeking luxury and durability backed by 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.

Review: Good - Pros- Great for camping. Self inflates with bag of air (please watch a video on how to fill up quickly). Can adjust how much air for firmness, pretty comfy, good quality, good length. Con- toddlers think it’s a trampoline, hard to sleep next to someone as they are meant for one person, even with a second next to them. Does slide a bit on the bottom of a tent.
Review: Excellent sleeping comfort - Great product and fast shipping

## 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 | #52,027 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #66 in Camping Air Mattresses |
| Brand Name | Therm-a-Rest |
| Capacity | 1440 Pounds |
| Color | Marine Blue |
| Customer Reviews | 4.2 out of 5 stars 858 Reviews |
| Global Trade Identification Number | 00040818140208 |
| Included Components | Pump Sack |
| Item Dimensions L x W x Thickness | 77"L x 25"W x 4.25"Th |
| Item Firmness Description | Adjustable |
| Item Height | 4.25 inches |
| Item Thickness | 4.25 Inches |
| Item Type Name | Camping Mattress |
| Item Weight | 4.38 Pounds |
| Manufacturer | Cascade Designs Inc. |
| Manufacturer Warranty Description | Limited lifetime warranty. |
| Material Type | Polyester, Polyethylene (PE) |
| Model Name | MondoKing 3D, L - Marine Blue |
| Number of Items | 1 |
| Product Care Instructions | Spot Clean |
| Size | Large - 77 x 25 Inches |
| Specific Uses For Product | Sleeping Pad |
| Target Audience | Adult |
| UPC | 040818140208 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Weight Capacity Maximum | 1440 Pounds |

## Product Details

- **Size:** Large - 77 x 25 Inches
- **Special Feature:** Anti-Deflate, Insulated, Portable
- **Brand:** Therm-a-Rest
- **Color:** Marine Blue
- **Product Dimensions:** 77"L x 25"W x 4.25"Th
- **Specific Uses For Product:** Sleeping Pad
- **Included Components:** Pump Sack
- **Target Audience:** Adult
- **Model Name:** MondoKing 3D, L - Marine Blue
- **Capacity:** 1440 Pounds

## Images

![Therm-a-Rest MondoKing 3D Self-Inflating Camping Sleeping Pad - Image 1](https://m.media-amazon.com/images/I/71+BNN310+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by S***H on July 25, 2025*

Pros- Great for camping. Self inflates with bag of air (please watch a video on how to fill up quickly). Can adjust how much air for firmness, pretty comfy, good quality, good length. Con- toddlers think it’s a trampoline, hard to sleep next to someone as they are meant for one person, even with a second next to them. Does slide a bit on the bottom of a tent.

### ⭐⭐⭐⭐⭐ Excellent sleeping comfort
*by E***M on December 15, 2025*

Great product and fast shipping

### ⭐⭐⭐⭐⭐ Comfy
*by T***O on November 6, 2025*

I have slept multiple nights on it with zero issues. It is big, but man is it comfy. Definitely not a backpacking pad, but if you have the room in your car, you can't go wrong. I would even use this at home as a spare bed in a pinch.

## 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 Netherlands*
*Store origin: NL*
*Last updated: 2026-01-26*