---
product_id: 472115927
title: "Lost Horizon Option3 Self-Inflating Foam Camping Mattress, Full, 4.5\" | Air & Foam Comfort, Adjustable Firmness, R13 Insulation, All-season ready, Sleeping Pad"
brand: "lost horizon"
price: "¥113497"
currency: JPY
in_stock: true
category: "Lost Horizon"
url: https://www.desertcart.jp/products/472115927-lost-horizon-option3-self-inflating-foam-camping-mattress-full-4
store_origin: JP
region: Japan
---

# Supports up to 440 lbs R13 all-season insulation 4.5-inch plush thickness Lost Horizon Option3 Self-Inflating Foam Camping Mattress, Full, 4.5" | Air & Foam Comfort, Adjustable Firmness, R13 Insulation, All-season ready, Sleeping Pad

**Brand:** lost horizon
**Price:** ¥113497
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your outdoor sleep game—comfort that keeps up with your wildest adventures!

## Quick Answers

- **What is this?** Lost Horizon Option3 Self-Inflating Foam Camping Mattress, Full, 4.5" | Air & Foam Comfort, Adjustable Firmness, R13 Insulation, All-season ready, Sleeping Pad by lost horizon
- **How much does it cost?** ¥113497 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/472115927-lost-horizon-option3-self-inflating-foam-camping-mattress-full-4)

## Best For

- lost horizon enthusiasts

## Why This Product

- Trusted lost horizon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Every Body:** Robust 440-pound capacity supports diverse body types without sacrificing comfort or stability.
- • **Year-Round Adventure Ready:** R13 insulation keeps you cozy from spring chills to winter frost—sleep warm no matter the season.
- • **Silent Nights, Restful Mornings:** Innovative foam-air design eliminates squeaks and shifts, so you and your partner sleep undisturbed.
- • **Cloud-like Comfort, Tailored to You:** Adjustable air + foam combo lets you dial in your perfect firmness for unmatched sleep quality.
- • **Effortless Setup, Premium Portability:** Self-inflates in seconds with a twist; compact carry bag included for easy transport to your next escape.

## Overview

The Lost Horizon Option3 Self-Inflating Foam Camping Mattress offers a luxurious 4.5-inch thickness with a unique air and foam blend for adjustable firmness. Rated R13 for superior insulation, it ensures warmth across all four seasons. Supporting up to 440 pounds, it provides stable, silent comfort ideal for diverse campers. Easy to inflate and portable with a carry bag, this mattress is designed for serious outdoor enthusiasts seeking premium rest in the wild.

## Description

desertcart.com : Lost Horizon Option3 Self-Inflating Foam Camping Mattress, Full, 4.5" | Air & Foam Comfort, Adjustable Firmness, R13 Insulation, All-season ready, Sleeping Pad : Sports & Outdoors

## Features

- 【Superior Support and Comfort】This Sleeping Pad boasts a 4.5-inch thickness and 12-pound foam filling, delivering unparalleled support and comfort. With a weight capacity of up to 440 pounds, this sleeping pad accommodates a variety of body types. Its unique internal structure ensures even distribution of air and foam throughout the pad, effectively reducing pressure points and providing a good night's sleep. Please note that this pad is not recommended for backpacking.
- 【Adjustable Softness】This mattress utilizes a unique combination of foam and air, making it fully adjustable for personalized softness and support. This means you can easily adjust the pad's comfort to your liking, allowing for the best sleeping experience. Compared to single-material sponge or memory foam pads, this sleeping pad offers a higher level of personalization and comfort.
- 【Silent and Stable Support for Quality Sleep】The mattress provides a stable sleeping surface with minimal noise, ensuring that your movements won't disturb your sleep or your partner's. Unlike other air mattresses that may make annoying squeaking or rubbing sounds, this unique combination of air and foam construction keeps you comfortable and quiet throughout the night.
- 【Easy Inflation and Challenging Deflation】The mattress is incredibly easy to inflate, just twist the valve, and you're good to go. However, because of its bulk and weight, deflating the pad may take some patience. To solve this problem, we offer an electric pump, which you can purchase separately. The pump can be used for both inflation and deflation, making the process quick and convenient. Please note that stowing the pad may take some time and effort, but the comfort it provides is worth it.
- 【Four-Season Insulation】This sleeping pad boasts an R-value of 13, offering exceptional insulation in cold environments and surpassing many other sleeping pads on the market. The 12-pound foam filling ensures comfort and appropriate insulation in various outdoor environments. Suitable for spring, summer, autumn, and winter, this sleeping pad provides a consistently comfortable sleep experience throughout the year.
- 【LOST HORIZON HIGHLY VALUES CONSUMER EXPERIENCE】Our goal is to create high-quality professional outdoor products for outdoor adventurers, so we attach great importance to your experience and feelings. There is a 1-Year warranty with this product, so if you have any problems, please feel free to contact us and we will respond within 24 hours!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XLGQ6GR |
| Additional Features | Adjustable, Air + Foam, Self Inflating |
| Best Sellers Rank | #1,894 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #4 in Self-Inflating Sleeping Mats for Camping |
| Brand Name | Lost Horizon |
| Capacity | 440 pounds |
| Color | Brown |
| Construction Type | Inflatable |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,162) |
| Fill Material | Foam |
| Included Components | Carry Bag |
| Item Depth | 4.5 inches |
| Item Dimensions | 80 x 52 x 4.5 inches |
| Item Dimensions L x W x Thickness | 80"L x 52"W x 4.5"Th |
| Item Firmness Description | Adjustable |
| Item Thickness | 4.5 inches |
| Item Type Name | Air Mattress |
| Item Weight | 7.3 kg |
| Manufacturer | Lost Horizon |
| Manufacturer Part Number | LHCM |
| Material Type | TPU Laminated Polyester Fabric, Solid Foam |
| Mattress Comfort Layer Material | Polyfoam |
| Model Name | LH-DOUBLE |
| Model Number | LHCM |
| Number of Items | 1 |
| Number of Layers | 1 |
| Product Benefits | Portable |
| Product Care Instructions | Hand Wash Only |
| Size | Full |
| Specific Uses For Product | Camping Mattress |
| Target Audience | Adult |
| Top Material Type | Foam |
| Water Resistance Level | Water Resistant |
| Weight Capacity Maximum | 440 pounds |

## Product Details

- **Brand:** Lost Horizon
- **Color:** Brown
- **Included Components:** Carry Bag
- **Item Weight:** 7.3 kg
- **Material:** TPU Laminated Polyester Fabric, Solid Foam
- **Product Dimensions:** 80"L x 52"W x 4.5"Th
- **Size:** Full
- **Special Feature:** Adjustable, Air + Foam, Self Inflating
- **Specific Uses For Product:** Camping Mattress
- **Target Audience:** Adult

## Images

![Lost Horizon Option3 Self-Inflating Foam Camping Mattress, Full, 4.5" | Air & Foam Comfort, Adjustable Firmness, R13 Insulation, All-season ready, Sleeping Pad - Image 1](https://m.media-amazon.com/images/I/81GBGzavKjL.jpg)

## Available Options

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

## Questions & Answers

**Q: Hi - what's the pad made of - pvc, tpu, other? also, what's the warrantee?**
A: Hi,
Thank you for your inquiry about the LH AirSoft Mattress.
The cotton inside this mattress is 100% POLYURETHANE FOAM.
The surface fabric is 100% POLYESTER.
The warranty period is one year.
We hope that you find this information helpful.
If you have any issues, please feel free to contact us.
Have a good day!
Best wishes,
Lost Horizon Customer Service

**Q: I followed directions to deflate and it took 45 minutes and a lot of work! Is there an easier way????**
A: The Lost Horizon Portable Air Pump does an excellent job of deflating the Air Soft air mattress (also can inflate it) in short order. The pump really should be made available as part of the air mattress purchase.

**Q: Will be able to fit coleman skydom 4 person?**
A: You will have to measure. If it’s off by two inches or so it’s fine they expand when aired up fully about and inche or two

**Q: Will the double fit two people?**
A: It will fit two thin people but honestly not very comfortably. I’m 5,7 and consider myself to be thin and have slept with my 1 y/o and with my 4 y/o on separate nights and with my 4 y/o it was hard to get comfortable especially because he also moves around a lot when he sleeps

## Frequently Bought Together

- LOSTHORIZON Air & Foam Camping Mattress, Self-Inflating Sleeping Pad, 4.5" Thick, with Pump Sack, Full
- Teton Mammoth Queen Size Double Sleeping Bag- A Warm Bag The Whole Family can Enjoy – Great for Camping, Hunting and Base Camp. Compression Sack Included
- Amazon Basics Waterproof Camping Tarp, 10 Feet x 12 Feet, Dark Green

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-15*