NEMO Cosmo Insulated 20R

2 reviews
5-star:   0
4-star:   2
3-star:   0
2-star:   0
1-star:   0


Weight 2 lb 2 oz / 966 g
Width 25 in / 64 cm
Length 76 in / 193 cm
Thickness 3 in / 7.6 cm



A comfortable insulated pad that has an integrated…

Rating: rated 4 of 5 stars
Source: bought it new
Price Paid: $140 USD


A comfortable insulated pad that has an integrated foot pump which allows for quick and easy inflation without having to huff and puff or bring along any extra pumps.


  • Integrated foot pump with one-way valve
  • 3-season (could easily be stretched to 4 season)
  • 1-2 minute pump time
  • Horizontal baffling — feels stable and doesn't rock
  • Insulated


  • Foot pump valve is difficult to open

The NEMO Cosmo Insulated 20R is a pad that has exceeded my expectations. I wanted a pad that was first and foremost comfortable and allowed me get a full night's rest. Secondly, I wanted a pad that would perform well during the chillier nights (although I must admit, I never sleep outside when it's REALLY cold). Lastly, I wanted something that was easy to inflate/deflate, pack and carry. This pad has met all those demands. 


Comfort: I've never owned a truly good sleeping pad before, but I've borrowed a variety of friends' pads in the past for a night here or a weekend trip there and they typically left a lot to be desired. This was the first horizontal baffling pad I've slept on and while I can't say for sure that this is the biggest difference, I tend to think it has something to do with the comfort of this pad.

It feels stable, doesn't rock and the head is elevated slightly to provide a little extra boost for your pillow. I've never awoke from being uncomfortable on this pad, which is a far cry from other pads I've slept on. 

Chilly Nights: I've owned this pad for seven months now, sleeping on a 12-15 nights and doing so while using two different bags — a Marmot Trestles 15 (review forthcoming) and a Marmot Aspen 40 Minimalist (review also forthcoming). The coldest night I slept on it was 40°F, so I have yet to truly test its temperature rating of 20°F.

It performed very well at 40°F. If I have the chance to take it out on a night that drops below 40°F, I will update this review accordingly, but in all reality, it's a rare occasion that I sleep outside when it's that cold (So why do I own a 15°F sleeping bag…good question). 

Inflate/Deflate: When I bought this pad, I didn't realize how quickly I was going to fall in love with the integrated foot pump. Again, I bought it primarily for its comfort and its insulation, not the foot pump. However, the foot pump is among its best qualities.

With the one-way valve open (more on that later), all I have to do is repeatedly step on the foot area and in 1-2 minutes (depending on the speed in which I'm stepping) the pad is fully inflated. It's so incredibly simple and works flawlessly. No threat of moisture getting in (ie: pads inflated by human breath) and I don't have to bring along any extra pump. 

When deflating, I simply open the other, more traditional valve located at the head of the pad, and start letting air escape. Pretty simple stuff. 


Action shot! I realize now that a demo video would have been much more helpful. Sorry. 


Close-up of the integrated foot pump area. 

Other Bits: The pad has a layer of PrimaLoft insulation, and is made with 75D PU polyester. It comes with a compression strap (very helpful) and stuff sack, as well as a small repair kit (which I haven't had to, nor do I hope to, have to use). It packs to roughly 8.5"x5" and is a little under 2 lbs (Note: the manufacturer's specs say 1lb 12 oz., but my scale reads a little north of that.)


Size Comparison: The NEMO Cosmo Insulated 20R fully packed with its compression strap and in its stuff sack beside a standard sweat-stained adult ball cap. 

The One Drawback: The only thing about this pad I've found that I don't care for is the sheer strength it takes to open the foot pump valve. Seriously, like He-Man strength! Okay, it's not that bad, but I do constantly worry about ripping the cap off completely or tearing a seam because of how much force it takes to open the valve. I hope the more I use it, the easier it becomes to open the valve. 

Recommendation: Heck yes, I recommend this pad. As I mentioned before, I'm not a pad enthusiast and this is the first real pad I've owned myself, so I don't have lots to compare to. However, getting a full restful night's sleep is crucial to me and every night I've slept on this pad, I've been gifted with a full night of interrupted sleep. That deserves my recommendation. 


Nice review and pics, Kiwi. Thanks for sharing them!

2 days ago

Wonderful review, Kiwi! Thanks for sharing!

2 days ago
Daniel Oates

Great review and pics, Kiwi! The foot pump seems like a nice feature to use after a long hike instead of huffing and puffing when you want to relax.

1 day ago

Nice review. I'm a fan of integrated pumps as its one less thing to play around with.

16 hours ago

Nice review, KK!

6 hours ago

Great for saving space on my motorcycle. I ride and…

Rating: rated 4 of 5 stars
Source: bought it new


Great for saving space on my motorcycle.


  • Rolled up size


  • Valve very hard to open

I ride and camp from a motorcycle and bought this to replace my rather large 30" wide Thermarest. It's less than half the size rolled up but even more comfortable.

The built-in pump is nice although the valves can be very difficult to open when new. I made a cover for it and zip my sleeping bag to it, copied Big Agnes's idea.