*Update history
2025/8/4 Updated company mats to the latest information!
NatureHike's R5.8 air mat is unusable due to an air leak!
NatureHike's R5.8 air mat is a very popular air mat for various blogs and reviews because of its very good cost performance!
Rectangular M size, 183 cm x 64 cm, list price 18990 yen R5.8 Weight 590 g
If you choose an air mat of this spec with a famous manufacturer, it's natural to exceed 30,000!
We have regular sales, and when it's cheap, it's 13,592 yen.
At Aliek, it may be on sale for less than 10,000 yen, so if you can wait for the arrival, it's a good idea to look for it.

That's why I bought NatureHike's R5.8 air mat, but an unexpected event occurred 2-3 times after the first use.
It's flat and the air is out while I'm sleeping.
This is not much different from the 100-yen blue sheet.
It's not the level of bad cost performance.
If this happens at a campsite or the ridgeline of the Alps in the middle of winterI'm going to die.
It is necessary to take immediate action.
Identify the cause
As usual, after inflating the air mat to some extent, soak it in the remaining hot water of the bath and identify where the air is leaking.
If it's a normal piece of fabric, you can easily deal with it by simply sticking the following repair patch.
However, the air leakage was not the fabric.
Air was leaking from the valve. Do you want to rest? ?
*In addition, the following is for the air pump.The LED lantern and the mini pump that can be used together are very convenientThat's right!
LED lanterns are almost essential for outdoor use, but you can reduce the number of lanterns with only single functions. It's pretty good because you can narrow down the load on bike touring, mountain climbing camps, etc.
There is also a pump bag like this, but it weighs about 50g. Since the above pump has a weight of 94 g, it may be possible to reduce the weight of the lantern.
Consideration of coping methods
(1) If you look at the reviews on the Internet,'Firmly hold the valve'There were some things.
→It's no good.
It's flat and the air is out while I'm sleeping.
(2) Replace only the valve.
If you look around Aliek, it seems that there are replacement parts for the valve only. I don't know if it's different from the genuine product.
There are also products like this. Inflator mat valves are also sold for 58 yen. *Shipping fee is usually 500 yen.
And how do you replace this?
Even if you do a poor repair, it seems that air will leak from somewhere else...
By the way, Thermarest seems to be producing a proper genuine repair valve!
Is there a problem with the structure in the first place?

The problem isRight side of this imageIt's the one.
When you withdraw, the air will be released at once! Although it is a valve with a selling phrase,
When pressure is applied from the inside of the air mat, it acts in the direction the lid opens.
In fact, if you get on the air mat vigorously,
POPS OPEN!!\(^o^)/
And there were several times when the valve opened and the air escaped.
Isn't it bad to have a valve that is vulnerable to pressure from the inside?
Yes, it must be bad.
What is the structure of the air valves of competitors?
That's fine, then you can throw away NatureHike's mat and buy a high-end mat. Life cannot be replaced.
The target is a rectangular type with an R4 or larger and a size of around 180 x 60. (People who prefer comfort over weight)
Expeded
ULTRA 5R (official page)
MW size, 183cm x 65cm, list price 37450 yen Weight 660g R value is 4.8 before, but the description is gone...
The specs look good, but what about the valves that matter?

There are two valves, IN and OUT! ! Moreover,Push-in type that looks like a POPS OPENThat's right!
Personally,A valve that allows air to exit and exit is a weak point of air mattressI think so.
It's a bit reluctant to say that there are two of them, so I'm excluded from the candidates.
I haven't seen the real thing, so I don't know if the structure is actually a problem.
nemo
Tenser™ All Seasons (Official Page)
Regular wide size, 183 cm x 64 cm, list price 35200 yen R5.4 Weight 530 g
The weight is light, the price is modest, and the cost performance is good, isn't it?
(Every day,Bedroom mattresses that you use at home are much cheaperbut)
The structure of the valve is...

Ooooooooooooooooooooooooooooo ? ? ?
Has the latest version of the air mattress been improved for 7 years? ? ? ? ?

Even though the 5th year version of the air mattress was a POPS OPEN type, has it evolved into a screw-in type after a while? ? ?
All right, check the official video.
I felt deep despair after watching this video at 1:51.
Sea to summit
Ethernet XR (official page)
Large size, 198 cm x 64 cm, list price 34540 yen R4.1 Weight 604 g
Specifications are steadily evolving from the previous Ethelite XT.
Since the price increase is small, the cost performance at the fixed price has increased!
The structure of the valve is...

This is also the same double structure as NatureHike! Dissolution! ! It hasn't evolved!
Thermarest
Neo Air X Light NXT MAX (official page)
RW size, 183cm x 64cm, price 45100 yen R4.5 Weight 540g
I know that the cost performance is bad, but I've been using the old model 'Neo Air Wrecker 183 cm x 51 cm R2.0' from August 2012 to 11 years, and I'm a manufacturer I'm attached to. The neo-air wrecker can be used without any fatal troubles while repairing punctures. This time, actuallyI don't like the fact that the width of the neo-eatreck is only 51 cm.I'm looking for a new mat.
The structure of the valve is...

Wow, this is a screw-in type that seems to be highly reliable!
Well, it's kind of expensive...
Isn't it about 10 days a year to sleep outdoors?
Think calmly, it's more expensive than the mattress you've been using at home for the remaining 355 days, isn't it?
I bought an Airweave pachi-like mat that I bought for about 20,000 yen.
Before I knew it, I've used it for about 4000 days, but I've had a good night's sleep. I've started to cut 5 yen a day.
It's cheaper than 'the insurance premium per day...' that is often said in commercials for some kind of insurance.
Well, I think the trusted thermal rest will last a long time.
※It's a romance fee of R4.5 due to the size and weight of a plastic bottle...
Mont-Bell
Next is an ally of the common people, and from Montbell, you can enter Exceloft Airpad 180 and U.L. Comfort System Air Pad Wide 180!
Official (Exeloft Air Pad 180)
180 cm x 50 cm, list price 22000 yen R5.0 weight 658 g
Official (U.L. Air Pad Wide 180)
180 cm x 60 cm, list price 18200 yen R1.4 Weight 638 g
It's a shame, it's really a shame! !
The EXELROFT is only 50 cm wide, so I'm trying to buy a new one because it's comfortable to sleep in, so I'm sorry. I want at least 60cm.
On the other hand, the U.L. Comfort system has an R value of 1.4! I don't go camping in the snow, so I've never had any problems with a neo-eatreck with an R value of 2.0 (because I've always used a closed-cell-type mat, which I've always used, but I'm not sure about the R value of 1.4.
Also, NatureHike is too cheap and looks inferior in terms of cost performance.
The structure of the valve is...


Oh! Isn't this amazing! !
It's a structure that shouldn't be called a POPS OPEN when removing air! !
It's not a waste of a double valve.
The valve closes tightly as pressure is applied from the inside.
Since it is not a double valve, you can press the 'valve' from the outside with a thin object only when you want to discharge the air...
Really reasonable!
What a fail-safe reliability structure!
If the mat used in the mountains becomes flat, you can't even look at it,
We want other manufacturers to have this kind of safe structure.
However, the specs on the main unit do not meet my purchase conditions...it's very disappointing...
Why don't you try repairing it with this method that is enough to throw it away!
So, when I was looking at the instructions for Montbell above, I suddenly noticed.
Adhesive double valve function
Should I cancel it...?
And.
NatureHike, which is out of air soon, is on the verge of going to the trash, so there is no hesitation.
The outer part of the double valveApply a solid adhesive so that it never comes off againI will.

As far as the replacement parts of the valves pasted above are seen, the material of the valve seems to be TPU.
Since TPU is a material that is difficult to adhere, it is likely that the following special adhesives are suitable.
(I don't know because I haven't used it)
It's a hassle to buy, so I used the Semedaine supermarket that was lying around at home in the red frame.
*By the way, I couldn't use the silicon sealant used to keep the bathtight. It seems that it is not compatible with TPU, and it has all peeled off.
And what about the results?
Yes, the air venting from the valve has been completely eliminated.
It's matte bread even after one night!That's a great success!
So, when you withdraw, you have to somehow get out of the air that has become so full.
If you don't push the inside 'backflow prevention valve' from the outside with something thin, the air will not escape.
I'm looking for something like a stick that can be pushed in a nice way.
Yes! ?

Somehow, I wonder if it's attached there to vent the air
A custom tag? Right? ?

It really fits Cinderella (laughs).
It's not too loose, not too tight, and the fit is enough to easily release the air.
So,Cancel the POPS OPEN featureHowever, I was able to remove the air from the outside without any problems by pressing the backflow prevention valve with a nice tag from the outside! You can't get it out at once! This is so safe and good. Surely.
I don't know if this kind of small part fits like a lot with a lot because it may or may not be attached to the lot, or even if there is another one.
If you don't have it, you can put the key of the car into it and it will get out of the air. In short, anything is fine as long as you can press the inner lid.
Finally
So, NatureHike's R5.8 mat has been able to avoid going to the trash! It seems that this double valve is becoming more and more popular recently.
Mysterious Chinese air mats that can be purchased cheaply on Amazon, etc.It seems that they are also being adopted. I wonder if everyone wants to get rid of the air at once with POPS OPEN so much? Let's take it easy as long as we clean up the camp, it's a holiday (realistic)




Up to the latest version of the Reiwa version of Air Mat! !
Ladies and gentlemen, is the latest version of matte mats leaking air? If you're going to throw it away, you might want to try canceling it once before throwing it away!
Above, I wrote that the valves of NEMO or SEA TO SUMMIT are double valves, but if they leak, it should be glued in the same way (appropriately)
If you contact Nature Hike, they may replace it with a new one! ?
Surprisingly, I received a message from a blogger who read this blog!
If you find an air leak, you can get a replacement by contacting the manufacturer!
It would be a good idea to contact them before sticking them with glue!
Now, I pray from the bottom of my heart that everyone's back will not touch the cold earth.
*I'm sorry that it's kind of silly even though it's often the number one article that has been ranked number one in Google search results...


