2015 Ski Guide2015 Ski Guide


The Big Agnes REM Air Core Mummy Sleeping Pad is the lightest inflatable pad available.

Big Agnes REM Air Core Mummy Sleeping Pad is the lightest and most comfortable inflatable pad on the planet. The Big Agnes REM Air Core Mummy is made of a durable 70 denier nylon fabric. They developed an I-beam construction to provide longitudinal rigidity and to give shape to the pad. The I-beam construction allows air to flow freely in and out, and reduces inflation time to a quick two minutes. The Air Core Mummy pads stuff to the size of a Nalgene water bottle and weighs a mere 19-24 ounces, (depending on size) yet provides a whopping 2.5” thick backcountry bed. When used with any Big Agnes sleeping bag, the Air Core pad can be left in the pad sleeve, deflated and stuffed with the bag right into its stuff sack. How's that for ingenuity? ALL REM SLEEP PADS COME WITH A STUFF SACK, REPAIR KIT, AND A 100% GUARANTEE.

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Big Agnes Air Core Sleeping Pad - Mummy

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Here's what others have to say...

Would this sleeping pad fit inside my Kelty...

Posted on

Would this sleeping pad fit inside my Kelty Cosmic 20 Degree sleeping bag?

Responded on

I tried it in my mountain hardwear lamina 20 as well as my marmot tressles 0 and it was quite the snug fit. I'm also 6'1 so this could play into it but I don't think I could enjoy a night of sleep in either bag with the pad inside of it. Maybe if I slept on my back completely motionless it would work, but there's a small chance that would happen with me. If you had a bag that had some stretch to it like the sierra designs utopia line..maybe it would work better.

5 5

Great product for light travel

This pad was fantastic for a recent trip that required a light load and camping on a remote tropical beach. While you do need to manually blow it up, it is not that big a deal. I was worried about the mummy design in terms of rolling off, but it worked great. I'm 6' 2" and around 220 lbs and it supported me better than any thermorest I've ever had. It packs really small. Do to the hot temperature we were not using sleeping bags, so my wife made slip covers from old sheets, which worked perfectly.

Responded on

Did you get the regular or long size?

1 5

Don't believe the hype, lame idea poorly rendered

I bought this pad based on the previous reviews and a desire for a compact set up for ADV motorcycle trips. I didn't find it very warm at 30F in Colorado and it was sticky on my back in the warmer climate of the desert due to the pad only being separated from my skin by a layer of nylon. My BA mummy pad is insulated and stays put but the bag has very tight dimensions and was claustrophic.The Pad keeps you off the ground by about 2.5"s and creates an uncomfortable position for my arms. I fiddled with diferent pressures but never really got comfortable. You can't roll over in a mummy bag because it fits so tightly and you can't roll inside either. Its a miserable design. Oh yea and mine sprung a leak right away that I have yet to repair. If you decide to try the BA concept get a bag plenty big enough to roll around inside of it.
PS Stuffs the size of a quart thermos and is quite light.
PS it is quite compact and light, just not warm, comfortable or well made.

Responded on

I have slept on my Big Agness in temps down to 25 below zero and never had a problem although my buddies sprung a leak and he spent a miserable night. I used it on a 28 day treck in the Sieras and would not be without it on a trip

Responded on

You don't have to stick it in the sleeping bag. If you want more room then just sleep on top of it! I like this pad a lot, it's light and comfortable. Only complaint is that it's not insulated.

5 5


I love this pad, it is super comfy, incredibly light and packable, packs smaller than a nalgene. It is great for backpacking and inflates to almost 3 inches thick, so you wont be feeling anything on the ground below you. I love this pad!

4 5

Comfy but noisy

I would say overall this is a great sleeping pad. Some of the reviews talk about getting lightheaded while blowing it up (since you have to do that manually) but I haven't found that to be the case yet. Used mine about 15 or so times over the past year and probably averaged about 4min inflation time without becoming lightheaded. Price is great. Comfort is awesome. My only gripe is that the material is kind of noisy against my Lafuma Warm n'Light 800 sleeping bag.

Responded on

love this pad! If you buy a Camp-tek micro inflator you will never get light headed again. ways 3 oz. and take about 3 minutes to inflate your pad. works great. it take 2 AAA batteries and last about 25 inflates.

This pad is rated to 35 degrees. I have...

Posted on

This pad is rated to 35 degrees. I have a 20 degree sleeping bag. Do you think I will stay warm when sleeping in 30 degree weather? Thanks

Responded on

Hey there I think you would be OK but would recommend the Big Agnes insulated aircore, more warmth not so much more on weight.

5 5

Best pad for the bucks!

Yes, you have to manually blow it up, but it is well worth the potential light-headedness. The 2.5 inch thickness is luxurious, I have never slept better on the ground. Sometimes I sleep better on this than some beds. Big Agnes hit the mark with the air core line, for the price you cannot beat them period. Stuffs a little bigger than a nalgene.

5 5

Nice Pad

Super comfy pad, once you get the rite amount of air figured out. Goes great with the BA Bags too. Packs really small

4 5


My backpacking buddies are envious of this super comfy pad. Everyone always warns about it taking a long time to blow up or whatever, but its BS. Seriously, if you are in mildly decent shape, you can spare a few breathes to blow this up. The ability to sleep through the night while out in the wilderness is really worth any shortness of breath you may experience.

The only complaint I would have is really with the Big Agnes line in general - the lack of insulation on the bottom of the bag and on this pad makes for a chilly night if the temp is below 40 outside (which happens a lot when you camp at tree line in the rockies)

But otherwise, its a great pad! Can't be beat if you want to sleep through the night when on the hard ground.

Does this pad make a lot of noise when you...

Posted on

Does this pad make a lot of noise when you shift position?

Best Answer Responded on

If you use it in a Big Agnes sleeping bag, then it'll be in the sleeve and you won't be sliding on it, in which case it doesn't make noise. That's the setup I have. If you use it independently, which I wouldn't recommend because you'll fall off it, then it is a bit noisier.

Responded on

I have 3 different insulation value BA pads and they are all quiet when used with my BA bags. I also have a spare non-BA sleeping bag and have not noticed it being noisy either.

Responded on

The Big Agnes pad that is loud is the Clearview pad. I have a Clearview and it is almost the same as this pad but it is clear plastic. The Aircore pad has a fabric coating over the plastic and it is very quiet.

5 5

Great nights sleep

For years I've just slept on foam insulites and, rightfully, I was always the first person getting my sore butt outta bed in the morning. With this pad, I actually want to sleep on it more than my bed, but my wife doesn't let me. Oh well. Great night's sleep in any position (I'm a side sleeper). No bottoming out. Yes, it does take about 13 breaths to fill it full (although can get by on 10), and the slight hiss of deflating is a bit of an affront to the back country, but I still highly recommended it.

5 5

Two thumbs up

Comfy pad, and the mummy shape doesn't make me lightheaded when I blow it up. Definitely recommended over rectangular inflateable pads...

4 5


Fits perfect, however I have not slept on it. I'll write another review after I have more time to evaluate.

5 5


I use this pad with my 50 degree Big Agnes summer bags. It gives 2.5 inches of comfort without any insulation so you can stay cool. I leave this in my bag and roll them up together. Comes with repair kit and stuff sack.

If you are going to be doing cold weather camping I would step up to one of the insulated pads.

4 5

sleeping pad

Compact, light weight, actually does fit in its stuff sack, and does exactly what it's supposed to do. Very comfortable!

5 5

Comfy, durable pad for a good price!

I used a few basic foam pads, a Ridge-rest, and then several different self-inflating Therm-a-rests for years of backpacking and camping, and never had a comfortable nights' sleep on any of them (call me the Princess and the Pea).

So, about 7-8 years ago, I bought the BA Air Core Sleeping Pad - Mummy and find it to be the most comfortable pad I've ever tried (I haven't tried the Term-a-rest Neolite yet). It's held up well to all kinds of abuse over the years I've owned it.

I'm 5'8" 145-150 lbs, and as a side sleeper, I find it to be very, very comfortable. The key is to fully inflate it, then lie on it and deflate it a little until it feels just right. Fully inflated is too firm for me, but let some air out and it's more comfortable than my regular mattress. It's also roomy enough that I never feel like I'm falling off (but that could be from years of practice sleeping in high hanging bunk-beds where a fall would be fatal and one must know exactly where one's body is in relation to the bed at all times).

It does take some time to blow up (but less than a pool mattress - I've tried those too, but this is far more comfortable, packs a lot smaller, and is way more durable). And even on cold nights, I never had it deflate.

As for packed size, I can fit it *into* a Nalgene bottle, no problem. I fold it into 4ths lengthwise before rolling it... So, I think the key to making it small is knowing how to fold/roll it - experiment to find what works best for you.

This summer, it developed a slow leak at my last camp and I had to re-inflate it in the middle of each night. :( Hopefully, I can find the leak and patch it - if not, it's supposed to have a life-time warranty! My guess is that it may be from storage (I leave it loosely rolled up in its stuff sack) or just old age... But that said, it's lasted longer than my best light-weight Therm-a-rest (which popped from a cinder and wasn't repairable).

As for the cold, it definitely does NOT insulate well. But that makes sense - it's an AIR mattress for crying out loud! It doesn't have any kind of coating to reflect body heat back or keep out ground temps. The solution for me is to either use a space blanket or a cheap foam pad under it for fall/winter camping (which also help to keep it from sliding around on the ground).

A weight-saving option would be the BA Clearview Air Pad - Mummy (http://www.backcountry.com/outdoorgear/Big-Agnes-Clearview-Air-Pad-Mummy/BAG0129M.html), but the polyurethane is probably not as durable as the 70 denier nylon laminate of the BA Air Core Sleeping Pad - Mummy.

Overall, I think it's the best bang for the buck for a comfortable sleeping pad (and lighter than most at less than 19 oz. for the regular size).

If you don't want to shell out 3xs the moolah for the Therm-a-rest Neolite and can spare the extra 5 oz. or are worried about the durability of the BA Clearview Air Pad, then this is a super sleeping pad to buy - your aching back will thank you!

4 5

Pay to Play

The size of this pad is where it really shines. Anyone looking to camp/backpack will want to give this one a shot. I stuff good old Agnes inside my n-face sleeping bag and its lights out! The quote of 2 min inflation time is a little misleading. I'm sure it’s possible but you might pass out from exhaustion shortly thereafter. Overall a decent pad and worth the money.

5 5

No more thermarest for me!

One of the best purchases I've made. It is great to be able to sleep the whole night without waking up because your arms are numb or your hip is sore. If you are a side sleeper, get this pad. The r-value isn't as high as a thermarest, but I haven't noticed any appreciable difference in warmth.

How well would this work with a Hennessy...

Posted on

How well would this work with a Hennessy hammock? I have tried other sleep pads and wonder if this wouldn't be superior.

Best Answer Responded on

the thermarest neoair would probably be a better choice in a hammock because the baffels are horizontal, not vertical, so it would bend better in a hammock. is a pad really necessary in a hammock?

Responded on

A pad is very necesary if you are hammocking in cold weather, especially one that holds air, it insulates you formt he wind that woudl otherwise be chilling your back all night.

5 5

Great Sleeping Pad

I was great to use while i was backpacking in Big Bend N.P. I would recommend this pad to any one. Especially since it is lighter and more compact than other sleeping pads that are out there.

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