Down Fill
Hydrogen Sleeping Bag (-1°C) LONG
Regular price
- Unit price
- / per
Down Fill
Hydrogen Sleeping Bag (-1°C) LONG
Regular price
- Unit price
- / per
Sleeping Bag Size Guide
Find the right Marmot sleeping bag for your next adventure. Choosing the correct length and shape helps maximise warmth, comfort and sleeping efficiency.
Men's & Unisex Sleeping Bags
Marmot offers several sleeping bag shapes and lengths. Available sizes vary by model.
| Bag Shape | Short | Regular | Long | Long X-Wide |
|---|---|---|---|---|
| Semi-Rectangular | Yes | Yes | Yes | Yes |
| Mummy | — | Yes | Yes | Yes |
| Slim Mummy | — | Yes | Yes | — |
This table shows Marmot's general size categories. Not every sleeping bag is available in every size.
Women's Sleeping Bags
Women's-specific sleeping bags may have different proportions and insulation distribution to suit their intended fit.
| Bag Shape | Regular | Plus | Long |
|---|---|---|---|
| Mummy | Yes | Yes | Yes |
| Slim Mummy | Yes | — | Yes |
Choosing the Right Length
Sleeping bags should provide enough space for you to lie comfortably without excessive empty space around your body.
| Size | What to Know |
|---|---|
| Short | Available in selected styles for shorter sleepers. Check the product's maximum user height. |
| Regular | The standard length option. Check the individual model's recommended maximum user height. |
| Long | Many Marmot men's and unisex Long sleeping bags accommodate sleepers up to 198 cm (6 ft 6 in). |
| Long X-Wide | Offers additional width where available. Check the individual bag's shoulder, hip and footbox measurements. |
| Women's Plus | A roomier fit option in selected women's sleeping bags. Check the model-specific dimensions. |
Important: Maximum user height and internal dimensions can vary between sleeping bag models. Always refer to the specifications for the exact sleeping bag you are purchasing.
Understanding Sleeping Bag Shapes
Mummy: A tapered design that reduces excess space and helps retain warmth. Popular for hiking, backpacking and colder conditions.
Slim Mummy: A more closely fitted mummy shape designed to minimise unnecessary space and weight.
Semi-Rectangular: Offers additional room through the body and legs, making it a comfortable option for sleepers who prefer more freedom of movement.
How to Choose Your Sleeping Bag
- Check your height: Compare your height with the maximum user height listed for the sleeping bag.
- Consider your sleeping position: If you move frequently or sleep on your side, you may prefer a roomier shape.
- Check the width: Look at the shoulder, hip and footbox measurements if you prefer additional space.
- Choose the appropriate warmth rating: Consider the lowest temperatures you expect to encounter and the bag's published temperature ratings.
- Consider packability: Weight and packed size are important when carrying your sleeping bag on multi-day adventures.
Getting the Best Fit
A well-fitting sleeping bag should allow comfortable movement without leaving excessive unused space that needs to be warmed by your body.
If you are near the maximum recommended height for a particular size, compare the next length up before purchasing.
Fit tip: Sleeping bag size is separate from temperature rating. Always check both the fit specifications and the manufacturer's published temperature information before choosing your bag.
Please note: This guide follows Marmot's official sleeping bag sizing categories. Exact dimensions and available sizes vary by model.
FILL: 800+ FP DOWN
WEIGHT: 811 G
COMFORT 2°C | LIMIT −3°C
FILL WEIGHT: 360 G
Availability
Quantity selected exceeds current stock
G.S.T included.
Description
Refuel on your next cold backpacking adventure in the ultralight, eco-friendly Hydrogen 30° Sleeping Bag - Long, featuring a new sustainable ExpeDry water-repellent technology that increases performance and reduces the drying time of your down bag. With an optimal ISO-tested comfort right around freezing, the Hydrogen will give you the warmth you need in a super-packable 800-fill-power down bag designed to easily stuff into any overnight pack. A thru-hiking favorite for years, the new gas bags provide lightweight warmth that's light on the Earth—perfect when you're looking to maximize miles or speed in the mountains and minimize weight and space in your pack. If going tent-less or camping with the car is in the plan, the Hydrogen will perform as a bivvy or a super-lofty trunk and rooftop snoozer.
- Ultralight and packable certified 800-fill-power goose down with eco-friendly ExpeDRY water-repellent finish that increases performance and durability with reduced drying time
- Pertex Quantum outer fabric, designed to trap still air and improve the efficiency of insulation. A durable water-repellent (DWR) finish sheds light rain and snow to provide additional weather protection.
- Anti-snag slider on main zipper and fold-down second zipper provide added ventilation and easy access in and out of sleeping bag
- Anatomically designed footbox with wrap-around construction increases warmth
- Smooth, curved baffles reduce down from shifting, increasing durability and reducing inconsistent heating inside bag
- ISO-tested for reliable temperature and comfort rating
- Stuff and storage sack included
Bag Temperature Celcius: -1°C
Bag Temperature Fahrenheit: 30°F
Product Care: Machine Wash Cold, Use Liquid Detergent, Gentle Cycle, Do Not Use Powdered Detergent, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Dry Clean, Do Not Use Fabric Softener, Rinse Twice, Do Not Store Wet
Tested Comfort: 36˚F/2˚C
Tested Limit: 27˚F/-3˚C
Footbox Size: 40.9 in, 104 cm
Hip Girth: 57.9 in, 147 cm
Includes Compression Stuff Sack: NO
Includes Storage Sack: YES
Includes Stuff Sack: YES
Insulation Material: Down defender, Goose Down
Insulation Type: Goose Down
Shoulder Girth: 63 in, 160 cm
Stuff Sack Size: 11.8 x 5.9 in, 30 x 15 cm
Style Number: M14403
Product Weight: 1 lbs 12.6 oz,811.0 g
Zipper Location: Left Zip
Adding product to your cart
