Klymit Double V Insulated (2-Person): I Bought & Tested It

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The Klymit Double V Insulated 2-Person Sleeping Pad is high quality, easy to inflate (it can be inflated even without airflow!), very portable and extremely versatile (it can be used not only for camping, but backpacking and traveling as well).

Unlike its Uninsulated counterpart, the Red Insulated Klymit Double V can also be used for off-season camping (although it’s not warm enough for winter).

However, because it’s insulated and thus slightly thicker, I found it more difficult to pack it back into its stuff sack, as the roll-top was a bit tight. But other than that, there weren’t any other significant cons.

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Check out the Klymit Double V Insulated:

Here’s what we’ll discuss here:

• Unboxing
• In the Box
• Specifications

Unboxing

I bought the Klymit Double V Insulated 2-Person Sleeping Pad from Amazon:

Here’s what the Klymit Double V Insulated Sleeping Pad looked like out of the box:

In the Box

After unboxing the Klymit Double V Insulated Sleeping Pad, I got the sleeping pad inside a stuff sack (pictured above), some instructions and also a patch kit.

Specifications

Here are my personal measurements and timings of the Klymit Double V Insulated Sleeping Pad:

• Thickness: 2.5 inches
• Loft: Air
• Length: 74 inches
• Width: 47 inches
• Weight (Mattress): 53.5 ounces
• Weight (Stuff sack): 3.7 ounces
• Total Weight: 57.2 ounces/3.6 pounds
• Packed Size: 12 by 7.5 by 7 inches
• R-value: 4.4
• Material: 75D polyester
• Valve: 2 FlatValves (1 for inflation, 1 for deflation)
• Stuff Sack: Yes (doubles as pump)
• Features: Side rails, V-shaped air chambers
• Fastest Inflation (With Airflow): 1.5 minutes or 12 bags of air
• Fastest Inflation (Without Airflow): <2 mins or 13-14 bags of air
• Fastest Deflation: 4 minutes 45 seconds (includes packing back into stuff sack)

I put the Klymit Double V Insulated 2-Person Sleeping Pad through these 5 tests:

1. Comfort
2. Ease of Use
3. Portability
4. Versatility + Sizing
5. Quality

Here’s how the Klymit Double V Insulated performed.

Comfort

Thickness and Loft

The Klymit Double V Insulated Sleeping Pad gets me about 2.5 inches off the ground. When inflated fully to firmness, my body does not touch the ground whether I’m sleeping on my back, stomach, or side.

But no matter how firm it was, I could always feel the ground when leaning on my elbow, knees or even just sitting down.

When tossing and turning in bed, I could also sometimes feel the ground.

Dimensions

The Insulated Double V measures about 74 by 47 inches, which is nothing close to a Queen or even a Full size in width, and it’s basically just slightly wider than the size of 2 regular sleeping pads put together.

Not the most spacious for sure, but I found it decently comfortable for 2 people in terms of space.

Air Chambers

The Insulated Double V features this V-shaped design, which consists of lots of V-shaped air chambers across the entire sleeping pad. These V-shaped baffles give my body quite a lot of support, and contour to my body.

But if you’re used to sleeping on completely flat and cushy self-inflating foam mattresses, like I am, this sleeping surface might take some getting used to, because it’s not as smooth and not as comfortable. But when I got used to it after a few days, it felt decently comfortable.

Side Rails

The side rails of the Double V doesn’t prevent you from rolling off the pad, but it does have better edge support than many of the other higher-profile 2-person air mattresses that I have.

Bounciness

The V-shaped air chambers on the left and right are not completely separate from each other, but it definitely helps to reduce movement of air during the night when there’s another person sharing the pad, making bouncing pretty minimal.

Noise

The surface fabric is a little louder compared to the other 2-person air and self-inflating mattresses that I have, but at least it doesn’t sound like a bag of chips.

Ease of Use

Valves

The Klymit Double V Insulated Sleeping Pad has 2 valves along the head of the mattress, one at each end.

Both are flushed with the surface and labelled, one says “Inflate”, and the other “Deflate”.

Inflation

To inflate the Double V Insulated, pull off the flap to the Inflate valve, which is a 1-way valve that only lets air in.

Then, attach the bottom of the stuff sack to the valve. You will hear a pop when it pops into place, it’ll be secure, and now your stuff sack becomes a pump.

If there’s no air flow at all (like inside a tent), I find that sticking my entire arm into the stuff sack and moving it up and down a couple times to even out the wrinkles and get it as cylindrical as possible, somehow fills it up with air.

If there’s moving air or wind, just face the opening of the stuff sack against the wind, and it’ll fill up with air. If you can’t seem to get a full bag, try sticking your entire arm into the stuff sack to even out the wrinkles as well.

Then, I fold the top down 2 or 3 times to get a full bag of air, and use my free hand to press down on the stuff sack to push the air into the Double V.

• If there’s no air flow, the bags of air tend to be slightly smaller, and it takes around 13-14 bags of air to fill the Insulated Double V. This takes around 1 minute and 45 seconds to about 2 minutes.
• If there’s moving air or wind, the bags of air tend to be slightly bigger, and it takes me around 12 bags of air to fill it up, which is around 1.5 minutes.

Once the Insulated Double V is fully inflated, and no more air can be pushed in, just pull the stuff sack off, and put the flap back on to close the valve.

Adjustment

If you find it too firm, just open the Inflate valve again, and press on the built-in flap gently, which lets a little air out.

Deflation

To deflate the Insulated Double V, pull off the flaps to both the Deflate valve, which is a simple 2-way opening, and the Inflate valve.

Then, fold the Double V in half, length-wise, 2 times, and roll it up starting from the side without the valves. Roll it as tightly as possible to get as much air out as you can.

If you find some air trapped in the Double V in the last few rolls, just make sure that both the Deflate and Inflate valves are not blocked by gently pressing on them.

This usually takes me about 1 minute and 15 seconds. Folding it up properly will take another 3 and a half minutes, so altogether about 4 minutes and 45 seconds.

Stuff Sack

The Insulated Double V comes with this red stuff sack, which has a roll-top. The opening is pretty small, so if your Double V isn’t deflated enough, it won’t fit back in nicely. But I do like the roll-top, so I can roll it and compact it down as much as I need to.

And the buckle at the top also acts as a handle for easy carry.

Portability

Packed Size

After deflating, the Klymit Double V Insulated Sleeping Pad has a packed size of about 12 by 7.5 by 7 inches. It might be a bit bigger if you don’t push out as much air though.

Here’s what it looks like back in the stuff sack, and beside a 32-ounce Nalgene bottle.

How to Fold

To pack up the Insulated Double V, just fold it in half, length-wise, 3 times. Then, roll it up again starting from the side without the valves, and as tightly as you can.

Again, some air might be trapped in the Double V in the last few rolls, so just press on the Deflate and Inflate valves gently and push out as much air as possible. After, close the valves, fit it back into the stuff sack, push it all the way to the bottom, and roll the top down as much as possible.

If you find that air gets stuck as you roll down the top, just lift the entire stuff sack off the ground, and the air will escape from the valve at the bottom of the stuff sack. Finally, buckle it up, and you’re good to go. This usually takes me about 3 and a half minutes.

Weight

Both the Insulated Double V and the stuff sack together weigh 57.2 ounces together, the stuff sack alone weighs 3.7 ounces, and the Double V won’t fit on my scale so doing the math, it weighs 53.5 ounces.

Versatility

Insulation

The Klymit Double V Insulated Sleeping Pad has an R-value of 4.4, so you can use it in summer and also for 3-season camping, but it’s not going to be warm enough for winter camping.

Unfortunately, I did not get to test this out, but the reviews seem to show that it’s fairly well-insulated. I used the Klymit Insulated Double V only in summer temperatures between 60 to 80 degrees Fahrenheit, and never felt too hot even in higher temperatures.

The V-shaped baffles also create small spaces for your sleeping bag to fill for better insulation, which is a nice feature.

Usage

Weighing about 3.6 pounds for the entire package, it’s quite a bit too heavy to be ultralight, but you could probably take it on shorter backpacking trips if you could spare a bit more weight and space. You can also use it for camping, especially if you’re short on space.

Sizing

2-Person Tent

Here’s what the Insulated Double V looks like inside a Coleman 2-Person Sundome Tent.

It doesn’t fill up the entire tent, so there’s some space for gear at the sides.

It also doesn’t reduce livable space at all, and I have plenty of space to sit up and also to crouch.

I could inflate the Double V while inside the tent since there was enough space at the sides. I could also inflate it outside the tent, and squish it into the tent while already inflated.

4-Person Tent

Here’s what the Insulated Double V looks like inside a Coleman 4-Person Dome Tent when placed horizontally.

Here’s the Double V placed vertically inside the tent:

And here’s the Red Insulated Double V placed beside the Blue Uninsulated Double V inside this same Coleman tent.

There’s a little bit of space leftover for gear at the sides even with both Double Vs inside this Coleman 4-Person Dome Tent. I also have lots of livable space, and I can almost stand up.

Quality

Material

The Klymit Double V Insulated Sleeping Pad is made of 75D polyester, which is on the thicker side for sleeping pads, and feels durable for sure.

Both the top surface and the bottom of the Insulated Double V feel exactly the same, and feels to be of equal thickness as well. So, I suspect the entire sleeping pad, both top and bottom, is 75D polyester.

Valves Quality

The FlatValves are nice and low profile, and I really like that there are separate valves for inflation and deflation.

These flaps feel thick and rugged, and I never had any issues with air leaking in the few weeks that I was using this.

Seams and Air Retention

Also, the seams are good quality and air retention is very good. I slept on the Insulated Double V with another person (about 300+ pounds together) 3 nights in a row without having to top off any air at all.

Stuff Sack/Pump Quality

I love that the stuff sack is versatile enough to double as a pump, and quickly inflates the Insulated Double V in a couple minutes.

The stuff sack feels like it’s made of the same material as the Double V, the seams look good quality, and it feels really durable even when I put a lot of pressure on it.

The stuff sack even has a handle for easy carry, and a hole at the bottom so you can push all the air out of the stuff sack. But I found that the stuff sack could be bigger, because it takes some time to push the Insulated Double V back into the stuff sack.

Pros

For pros, I found the Klymit Double V Insulated Sleeping Pad to be high quality, from the entire pad and the separate inflation deflation valves to the stuff sack. I’ve had this almost a year now, and it’s still holding up well, with no leaks at all.

It’s also pretty portable. It’s compact, and it’s not too much bigger than a 32-ounce Nalgene bottle. It’s also fairly lightweight, and both the pad and the stuff sack weigh 3.6 pounds.

The Insulated Double V is very, very versatile. The pad itself is nicely sized and low profile, so that it can fit into all 2-person tents, even ones that aren’t tall.

It’s light enough for shorter backpacking trips, and you can also use it for camping.

The stuff sack itself is also versatile. It acts as a pump and can inflate the Double V with or without air flow. And you can use this pad not only in summer but also for 3-season camping.

Cons

As for cons, the biggest one that I can think of is that it was pretty annoying to deflate it at first. Before I discovered Klymit’s deflation method on YouTube, I could not get the air out of the V-shaped chambers, and trying to fit it back into the stuff sack was always a nightmare.

Even after I followed Klymit’s deflation method, squeezing the rolled-up Klymit Insulated Double V back into the stuff sack is usually a 2-minute mini workout for me. I did not have this same problem with the Blue Uninsulated version.

Also, it’s not the most comfortable. It’s decent for sure, but the V-shaped air chambers does take some getting used to, at least for me. But there are lots of reviews saying that the Double V is super comfortable, so maybe it’s not a con at all.

I feel that the pros of the Klymit Insulated Double V are pretty attractive, and the cons are fairly minor.

I would recommend this to people who are going on shorter backpacking trips, and could spare a little extra weight and space for this. Also, if you’re camping, but short on space, this works really well.

I also recommend it for people who want just 1 pad for everything. The Insulated Double V works fantastic because it can be used for backpacking, camping, traveling, and in all 2-person tents. Even ones with lower peak heights. This is low-profile enough to not eat into your livable space.

And also, you can use this not only in summer, but also for 3-season camping, but not for winter, of course. Overall, the Klymit Insulated Double V is crazy versatile, and if that’s what you’re looking for in a pad, I say go for it.

To find out how the Klymit Double V Insulated 2-Person Sleeping Pad compares against the competition, here’s a blog post where I bought, tested and compared 10 of the best camping mattresses for couples.

Or, check out the Klymit Double V Insulated: