- Mummy-style 30-degree sleeping bag for backpacking and other outdoor activities; featuring SpiraFil high-loft insulation for maximum warmth and durability
- EN tested to provide a comfortable night's sleep at temperatures as low as 30°F
- Anatomically shaped footbox for more wiggle room and less heat buildup
- Weight: 3 lbs., 1 oz.; pack volume: 640.7ci (10.5 liters)
- 70D 100% polyester, 2.2 oz/yd; 70D 100% embossed polyester, 2.2 oz/yd
Last update on 2018-02-17 / Affiliate links / Images from Amazon Product Advertising API
We are taking a look at the Hydrogen sleeping bag by Marmot.
This is a 30 degree, mummy style sleeping bag that is perfect for a backpacker who is just looking for a really good quality, light weight sleeping bag.
The shell material is a pertex microlite which is just really light weight, really soft fabric.
And it is filled with really high quality 850 fill down.
And the down is Marmot’s down defender.
So as opposed to traditional down if down defender becomes wet it dries out faster.
It is going to keep you drier longer and ultimately it is going to keep you warmer.
So, you know, it repels moisture a little bit more like a synthetic bag.
You have the compressibility and the light weight feature of that down, but you also have that water repellent finish.
Marmot uses an EN or European norm rating for their sleeping bags, so this is considered a 30 degree bag.
However, the comfort rating is around 39 degrees and the lower limit rating is around 29 degrees, so definitely keep that into consideration before taking it into the back country.
With this mummy style sleeping bag you have a full length zipper.
And behind that zipper you have a nice draft tube to keep out cold air.
You have also got a fabric stitched right behind the zipper, so that is supposed to be an anti snag design, so your zipper isn’t going to get caught and the bag is not going to get caught in the zipper there.
You have got a nicely baffled hood, so you can really cinch that down on cold nights to keep the heat in.
There is a separate draw string for the top and for the bottom so you can customize that as you choose.
And you do have a full length, two way zipper.
So if we go down to the foot you can vent the sleeping bag from the bottom.
So if you need to just vent while keeping the top of the sleeping bag and if you need to get a leg out or something like that, you can vent from either way.
There is a trapezoid style foot box on the bottom of the sleeping bag.
So the zipper doesn't go all the way the way down to the very bottom, but this is better for thermal efficiency and a little bit more comfortable on your feet.
So instead of the top and the bottom of the sleeping bag just being sewn together, you have this boxing at the bottom.
There is also little tabs if you do need to hang the sleeping bag to dry out.
That is just another nice feature.
With the highest quality 850 fill down, this bag packs down into a really small pack size.
Marmot does include a small stuff sack for it, but if you were to get a compression sack, I can see it compressing down even more.
And we will show you just how small that gets.
I have got it packed down into the included Marmot stuff sack just so you can see how compressible and how small that gets for a 30 degree bag.
With the light weight construction, high quality fabrics, the Marmot down defender and that 850 fill down, you can be confident of being warm on your next back packing adventure.
It is the Hydrogen 30 degree bag by Marmot.