When I bought this ultralight sleeping bag from Dicks Sporting Goods, I was a little skeptical about just how rugged or comfortable this bag was going to be. I took this bag into the Arizona Desert recently where the temps dropped down to the chilly 40 Degrees. The question I had with this bag, would and if the temps dropped lower, would this bag keep me warm? The answer is yes.

The Aspen is just the think for a weekend backpack trip in the late Spring, early Summer. It is a very lightweight 600 Fill Goose Down Bag. The compression sack that comes with it, will be a welcome fit to your backpack. The zipper works well at night when stumbling around to get in and out of it, and the hood comes with easy draw string incase it gets chilly.

I called Marmot to get a feel on how to compare this bag with others that Marmot makes. The “Tech” guy couldn’t really give me all the answers to my questions because Dicks Sporting Goods has the rights to this bag. Yea, Marmot makes this bag exclusively for Dicks Sporting Goods. However, the “Tech” guy from Marmot hinted that this bag (although priced less than $100.00) matches up in quality with all their other bags, and the standard of excellence Marmot puts into their gear, was not compromised on the Aspen. He also “hinted” the bag could probably go under 40 and you would be fine. But, you didn’t hear that from me.

Having tested this bag on a two day hike in the Sycamore Wilderness Canyon in Arizona, I can tell you the bag kept me nice and warm, and I welcomed the weight benifits it gave me. The Aspen 40 Ultralight can be found at Dicks Sporting Goods for $99.00.

Weight: 1.13 oz
Fits: 6.0 ft
Pack size: 6″ x 12″
Temp: 40 Degress

aspen ultralight

Staff Writer

What can I say? I love being out in the Backcountry. I am the crazy guy that likes hiking and camping in bad weather. One of my all time favorite hikes is the Appalachian Trail. If you have an Article, Video or story you would like to share on thebackpacker.tv send me an email at joe@thebackpacker.tv

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19 comments

  • Thanks for doing some research for the rest of us. I was at Dicks just playing around and I saw this 40 degree Marmot bag that was well under 2 pounds and less than a hundred bucks, and couldnt believe it. It compacts down to the size of a Nalgene, and has the quality of Marmot Backing it up. When I got home to look up the reviews there was NOTHING but this one.
    Much abliged. I will write a reveiw when I get back from 60 miles in 5 days in the Smokies, it will be September First.
    C-yall

  • Stumbled across this review. Wanted to say that I bought this bag in 2006. Slept very warm in the Redwood State and National Parks in northern CA with a Thermarest–not sure on the exact temps 2 years later. Great bag.

  • Thanks for the reviews. Picked up the Aspen 40 UL yesterday. It’s been a long while since I bought a sleeping bag. I’m not sure how long this bag has been in the box. Please tell me this bag is going to loft up to the 3 in. specs..

  • I just got back from a 16 mile weekend trip on the AT in North Georgia. Temps were 30 degrees outside, wind and sleet at 4200ft. I was in a tent with one other person and I kept warm except for my feet (just me, I always have cold feet in any bag). I believe for most people this bag will work below 40 degrees assuming your in a tent. It’s so small and light weight I’m going to use it as a liner inside my 20 degree synthetic for my next trip up to 6600 feet in NC.

  • Cliff,

    Marmot also makes a 15 degree bag for Dicks. I called Marmot and they totally stand by these bags but they don’t give support because of an agreement with Dicks Sporting Goods. Awesome price however. I’ve used the 15 and it works really well.

  • Just bought one of these today. I am 6′ 2″ and fit in it fine. Nice quality, light, packs small.

  • Thanks for all the reviews. As a result of all the good comments, I just bought one of these today. So light and packs so small! I’m 6’1″ and fit ok. Pretty happy can’t wait to use.

  • Excellent sleeping bag..I’m a professional long distance Thru-Hiker and am on many long distance trails every year..I found this Marmot 40 degree down bag a one of my adventures in Dick’s sporting goods..I own several items of Marmot and am very happy with their products..I used this sleeping bag several times and it kept me very warm past 40 degrees..I also use a sea-to summit silk liner in all my bags witch in return add warmth to my bag and add 10 degrees as well..But one night I just used this bag alone and it kept me very warm and comfortable..I am also a gear tester for a sleeping bag company and pretty much tested this bag on my own behalf..So I give this bag a good rating for the money..Good buy and good sense..Peace..Love..Respect and truly Ultimate Happiness..”Ghost” A.T. 2001 Ga.-Me. and many others….

  • Excellent sleeping bag..I’m a professional long distance Thru-Hiker and am on many long distance trails every year..I found this Marmot 40 degree down bag on one of my adventures in Dick’s sporting goods..I own several items of Marmot and am very happy with their products..I used this sleeping bag several times and it kept me very warm past 40 degrees..I also use a sea-to summit silk liner in all my bags witch in return add warmth to my bag and add 10 degrees as well..But one night I just used this bag alone and it kept me very warm and comfortable..I am also a gear tester for a sleeping bag company and pretty much tested this bag on my own behalf..So I give this bag a good rating for the money..Good buy and good sense..Peace..Love..Respect and truly Ultimate Happiness..”Ghost” A.T. 2001 Ga.-Me. and many others….

  • I bought this bag for $90 at DIcvks and used it in MA in October. Temps reached about 34 F for a low. I was OK most of the night, a bit on the cool side at 5am when the low hit. So it is definitely good for 40 F, and even upper 30’s. Slept on a thermarest.

    One important thing I realized before using it. The down is not baffled or sewn through along the edge of the sleeping bag. You have to hold the bag length-ways then shake and rotate it until the down works it’s way to the baffles on the top of the bag. I got all the down on top, none underneath me. Otherwise the down is spread real thin. When you do this it has decent loft on top where you want it. Overall a decent lightweight bag for late spring, summer,early fall. Love the lightweight, less than 2 pouunds.

  • I bought two of these bags for my husband and I. We are going to return them. We are unhappy about how little room there is in these bags. They seem built for a very skinny person. I’m 5’11” and my husband is 6’0″ and we had no room in these bags when zipped up. We both weight around 190 so we are not over weight by much. These bags are over priced. REI sells the same type of bag for half the price. We bought these because it was a last minute camping trip and needed an adequate bag. I would not recommend this bag.

  • Used the bag again on a trip along franconia ridge to galehead out thru Zealand. Low temps in the mid 40’s. wIcked comfortable. I’m 5′ 9″ 180 and the bag fits me fine but I can see how it would get tight if your 6 feet.

    As for REI, good stuff, high price. I bought a Marmot never summer 0 bag last year on line from cyclocamping, $192. REI charges the full retail $289. Saved $100.

    As for this comment from above: “These bags are over priced. REI sells the same type of bag for half the price”

    Please let us know which bag you’re talking about because the cheapest 40 degree down bags that pack under 2 pounds at REI sell for around $200 and up

  • This particular Marmot is only made for Dicks Sporting Goods. Unless Marmot has changed something. ?? I bought this bag about two years ago. For the price, can’t beat it. I called Marmot and they don’t support this bag. But they make it. Same quality.

  • I have owned this bag for about a year, and have been very pleased so far. The bag is indeed very lightweight, and the stuff sack will easily double as a pillow when filled with clothing or what not. I use this bag when backpacking in the Michigan wilderness. It has kept me warm down to about 30 degrees…below that you may get chilly. One nice thing is that you don’t overheat in the summer, because you can easily unzip it. I did have a rough night in this bag…the forecast called for a low of 37, however it got down to 18. Simply put…I froze. It’s not the bags fault though! That’s on me for trusting the forecast when I should not have, and for not preparing myself further. Overall, this has been a fantastic purchase. I also highly recommend the Aspen 2P tent, also sold at Dicks, but produced by Marmot. It is a very dry and fantastically easy to use tent.

  • Thanks Ryan for the feedback. I love this bag. I also have the Aspen Down 15 Degree Adventurer. Also sold at Dicks. I’ve used that bag down to 18 degree’s under a tarp. Both of these bags are excellent and work even better if bring a lightweight liner for extra warmth on those nights the weather turns. I’ll look at the Aspen 2P Tent. If you have a review, send it and I’ll post it.

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