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REI Co-op Kingdom Insulated Air Review

Much warmer than non-insulated air mattresses and sleeps two, though still bouncy
rei co-op kingdom insulated air camping mattress review
Credit: REI Co-op
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Price:  $149 List | $149.00 at REI
Pros:  Big enough for two people, fabric is soft and quiet to sleep on, some insulation
Cons:  Bouncy, too large for some tents, fairly low R-value
Manufacturer:   REI-Co-op
By Laurel Hunter ⋅ Review Editor  ⋅  May 21, 2022
Our Editors independently research, test, and rate the best products. We only make money if you purchase a product through our links, and we never accept free products from manufacturers. Learn more
50
OVERALL
SCORE


RANKED
#13 of 14
  • Comfort - 40% 5.0
  • Ease of Use - 20% 7.0
  • Warmth - 20% 3.0
  • Versatility - 10% 4.0
  • Packed Size - 10% 6.0

Our Verdict

The REI Kingdom is an insulated air mattress and is considerably warmer than non-insulated air mattresses. While there is enough insulation to take off the edge, we wouldn't recommend this mattress for cold-weather camping. The fabric is soft on our skin and quiet to sleep on. While it is large enough for two people, you will both feel the bounce, and it may not fit in some tents. It comes equipped with a manual pump for easy set-up. For casual, warm weather camping and the occasional house guest, it is an excellent option.

Compare to Similar Products

 
Awards  Best Buy Award   Best Buy Award 
Price $149 List
$149.00 at REI
$179 List$126.30 at Amazon
Compare at 2 sellers
$170 List
$106.21 at Amazon
$80 List
$59.99 at Amazon
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Pros Big enough for two people, fabric is soft and quiet to sleep on, some insulationBed-like comfort, easy inflation, great valueVery packable, lightweight, warm enough for three season useLightweight, packable, great valueInexpensive, easy to use
Cons Bouncy, too large for some tents, fairly low R-valueToo big for some single person tentsBouncy, a little noisy, not warm enough for winterNot as comfortable as foam core camping mattressesNo insulation, bouncy, heavy
Bottom Line Much warmer than non-insulated air mattresses and sleeps two, though still bouncyAll our favorite features we love from a camping mat at a great priceA lightweight and packable mattress that is also comfortable and warm enough for most usesIf you want a mat that you can take on short backpacking trips and you prioritize snuggling over weight savings, this is the pad for youA classic air mattress, it's easy to use and good for the occasional warm night outdoors
Rating Categories REI Co-op Kingdom I... REI Co-op Camp Drea... Therm-a-Rest NeoAir... Klymit Insulated Do... EnerPlex Camping Se...
Comfort (40%)
5.0
10.0
7.0
6.0
4.0
Ease of Use (20%)
7.0
9.0
9.0
9.0
8.0
Warmth (20%)
3.0
9.0
6.0
7.0
1
Versatility (10%)
4.0
6.0
10.0
8.0
4.0
Packed Size (10%)
6.0
5.0
9.0
8.0
6.0
Specs REI Co-op Kingdom I... REI Co-op Camp Drea... Therm-a-Rest NeoAir... Klymit Insulated Do... EnerPlex Camping Se...
Dimensions 79 x 56 x 6 in 78 x 32 x 4 in 77 x 30 x 4 in 74 x 47 x 3 in 80 x 60 x 9 in
R Value 2.6 6.6 3.7 4.4 None
Test Model Asphalt Queen XL XLarge Two person Queen
Length 79 in 78 in 77 in 74 in 80 in
Width 56 in 32 in 30 in 47 in 60 in
Thickness 6 in 4 in 4 in 3 in 9 in
Weight 5.8 lbs 6.38 lbs 2.34 lbs 3.6 lbs 10.94 lbs
Type Pump inflation Self Inflating Pump inflation Pump inflation Pump inflation
Packed Size (inches) 10 in x 20 in 11 in x 30 in 12 x 6 in 7 x 12 in 17 x 17 x 8 in
Bed Material 100% polyester with a TPU laminate Stretch polyester Polyester 75D polyester Polyvinyl Chloride with waterproof flock top
Valves One-way One valve TwinLock Flush Flat One valve
Accessories Stuff sack, air pump Air Pump/Pillow Stuff sack, pump, pump sack Inflation bag/stuff sack Electric pump, 12 volt car plug, storage sack
Breaths to Inflate N/A N/A N/A N/A N/A

Our Analysis and Test Results

It is important to know what you are looking for in a camping mattress before you buy. If you are looking for the highest level of comfort, you may want to look at a foam mattress, which can be as comfortable as the mattress you sleep on at home. If you only sleep out a few nights a summer, and also need something for unexpected guests, an air mattress might be a good fit. The REI Kingdom is an air mattress that delivers a higher level of insulation than many other air mattresses, which can make the difference between sleeping and shivering all night.

Performance Comparison


rei co-op kingdom insulated air camping mattress review - the rei kingdom is a large air mattress that sleeps two (and a dog).
The REI Kingdom is a large air mattress that sleeps two (and a dog).
Credit: Laurel Hunter

Comfort


REI’s Kingdom is an insulated air mattress that blows up to be 6 inches thick across the surface of the mat. Like all air mattresses, it has a certain amount of bounce to it, especially with two people sleeping on it. If it is fully inflated, there is less bounce, but it may be too firm for comfort. By letting out some air, we found that it felt more cushioned, but also more springy. Two people who move a lot at night may not find this to be the best sleeping situation.

The Kingdom is considerably warmer than the average air mattress, and the fabric exterior is both quiet and soft to the touch.

rei co-op kingdom insulated air camping mattress review - the fabric on the outside of the rei kingdom is soft and quiet.
The fabric on the outside of the REI Kingdom is soft and quiet.
Credit: Laurel Hunter

Ease of Use


The Kingdom comes with a rather large manual hand pump for inflation. The valve has two parts to unscrew — the top cap reveals the one-way inflation valve, which ensures that air doesn’t come out after it's been pumped in. The pump nozzle pushes into this valve for relatively easy inflation. The hand pump is actually quite noisy, though it is dual-action so it inflates on both the pull and push motions. It is fairly low to the ground, as well, making it a bit awkward for taller people to operate.

The hand pump has a setting for deflate, but using it requires opening the deflation valve, where the air dumps out quickly, so we didn’t see any reason to use that side of the pump. For micro-adjusting the level of air in the mattress, we slightly opened the deflation valve until enough air was out to make the bed as soft as we wanted.

rei co-op kingdom insulated air camping mattress review - the manual pump is stout and short and works well to inflate the...
The manual pump is stout and short and works well to inflate the mattress without using electricity.
Credit: Laurel Hunter

Warmth


While most air mattresses lack insulation to protect you from the air below your body, making them really cold to sleep on, the Kingdom is equipped with some synthetic insulation for warmth. The R-value of 2.6 is enough to take the edge off of cool nights, especially in the summer months. If you are camping at higher altitudes, where nighttime temps can dip into the 30s, or in the early spring, late fall, or winter, you might want to consider a mattress with a higher R-value.

Our testers were pleasantly surprised at the insulating properties of this mattress, however, and for casual campers who primarily sleep out on warmer nights, the Kingdom is worth a look.

Versatility


The Kingdom is described as a queen-size mattress, 79 x 56 inches, making it large enough for two people and a dog, but too large to fit in many two- or even three-person tents. It is also too wide to fit in a standard pickup truck bed and lacks the insulation to make it comfortable for colder nights out. It is also much too bulky and heavy to carry for a backpacking trip. In other words, this is not the most versatile mattress. On the plus side, it makes a great guest bed and is durable enough for sleeping right on the ground.

rei co-op kingdom insulated air camping mattress review - the pump and mattress roll up together.
The pump and mattress roll up together.
Credit: Laurel Hunter

Packed Size


Considering the size of the hand pump, which tucks into the rolled-up mattress, the overall packed size of the Kingdom is pretty acceptable for a two-person sleeping setup. It is much too large for backpacking, but it won’t take up much room in the back of the car or in the gear closet at home. It is also notably lighter than many of the other two-person mattresses in our test.

rei co-op kingdom insulated air camping mattress review - while not tiny, the packed size of the rei kingdom is acceptable...
While not tiny, the packed size of the REI Kingdom is acceptable, especially as it sleeps two.
Credit: Laurel Hunter

Should You Buy the REI Co-op Kingdom Insulated Air?


While theKingdom costs more than a typical air mattress, it is much warmer and more comfortable than the average air mat. And it sleeps two people. If you want a big camping mattress that can double as a reasonably comfortable guest bed, this is an excellent choice and a good value.

rei co-op kingdom insulated air camping mattress review - the rei kingdom is much warmer than non-insulated air beds.
The REI Kingdom is much warmer than non-insulated air beds.
Credit: Laurel Hunter

Conclusion


Foam mattresses offer the highest level of comfort, but two-person foam camping mats can be quite large, as well as pricey. If you plan to car camp a lot, investing in a plush foam mat may be worth the investment. If, on the other hand, you are a casual camper who wants more comfort than the average air bed, the Kingdom is worth a look.

Laurel Hunter
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