Truck Bed Camping Air Mattress with Foam 4.5in Thick - Full Size Short

In this review the LOSTHORIZON truck bed camping air mattress stands out as a practical option for people who regularly sleep in a short full size truck bed. The single biggest reason to buy is its combination of 4.5in foam thickness and air adjustability, which delivers a much firmer, more supportive surface than a thin inflatable pad while fitting most 5.5 to 5.8ft short truck beds. It is aimed at car campers and weekend adventurers who want near-home mattress comfort without a full camper setup.

Key Features

• Custom fit: Designed to match most full size 5.5 to 5.8ft short truck beds for a stable, well-sized sleep area.
• Thick foam core: 4.5in thickness with 10 lb foam filling provides strong support and helps reduce pressure points for better overnight rest.
• High weight capacity: Engineered to support up to 440 lb, accommodating a wide range of body types without sagging.
• Adjustable comfort: Combines foam and air so users can fine-tune firmness by adding or releasing air for personalized support.
• Quiet, stable sleep: The air-plus-foam construction minimizes squeaks and movement noise for undisturbed sleep.
• Four-season insulation: R-value of 13 and 10 lb foam filling give strong insulation for spring through winter camping.

Who It's For

This mattress is best for truck campers who prioritize comfort and insulation when sleeping in a short full size truck bed; it works well for solo sleepers or couples who need a stable, thick pad with high load capacity. The pad is also a good choice for cold-weather trips thanks to its high R-value and substantial foam filling.

It is not ideal for backpackers or ultralight treks because the pad is bulky and heavy to stow, and deflation can be time consuming without an electric pump. Buyers who need very compact or ultralight gear should look elsewhere.

Pros & Cons

Pros

• Comfortable, supportive 4.5in foam and air hybrid that improves sleep quality on a truck bed.
• Good fit for most 5.5 to 5.8ft short truck beds and stable surface with minimal noise.
• Strong insulation for cold nights and a high 440 lb weight capacity.
• Adjustable firmness lets users dial in personal comfort.

Cons

• Bulky and fairly heavy to stow; deflating and packing away takes effort without a pump.
• Some users report mixed experiences with included pump performance after initial use.

Specifications

Designed bed size	Full size short truck bed 5.5 to 5.8 ft
Thickness	4.5 in
Foam filling	10 lb foam
Weight capacity	Up to 440 lb
R-value	13 (four-season insulation)
Inflation	Twist valve for self-inflation; pump available separately
Warranty	1-year

Our Verdict

The LOSTHORIZON truck bed mattress is a smart buy for truck campers who want a thick, insulated, and adjustable sleeping surface that fits most 5.5 to 5.8ft short truck beds. It delivers clear benefits in comfort and cold-weather insulation, making it good value for weekend adventurers and seasonal car campers, though buyers should plan for the bulk and possible need for a pump when packing it away.

Frequently Asked Questions

Will this pad fit my short full size truck bed?
It is designed for most full size short truck beds in the 5.5 to 5.8 ft range and should fit those dimensions snugly.

Is it warm enough for winter camping?
Yes, the pad has an R-value of 13 and 10 lb foam filling, providing strong insulation suitable for spring through winter use.

Do I need an electric pump?
The mattress self-inflates via its valve, but deflation and packing can be slow and an electric pump (sold separately) can speed both inflation and deflation.