Down Fill
Mad River 15 Sleeping Bag (-9°C)
Regular price
- Unit price
- / per
Down Fill
Mad River 15 Sleeping Bag (-9°C)
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: 650 FP DOWN
WEIGHT: 1.300 KG
COMFORT −5°C | LIMIT −12°C
FILL WEIGHT: 750 G
Availability
Quantity selected exceeds current stock
G.S.T included.
Description
If it ain’t broke, don’t fix it. The Mad River is a packable down mummy bag for the backpacking traditionalist who just wants a good night’s sleep after a good day's slog. 650-fill-power duck down means this bag packs small yet still lofts up tall, so you can comfortably recharge after a long day on the trail. Chemical-free ExpeDry™ tech delivers forever performance without forever chemicals, permanently helping down dry quickly and maintain loft when sweat, humidity, and condensation try to dampen the mood—and the bag’s warming powers. A full-length anti-snag zipper and secondary side zipper give you precision comfort control and blanket-like coverage for changing conditions, sleeping positions, and tent card games. The roomy footbox gives your feet space to breathe, while the insulated draft tube ensures warm air doesn’t drift out when you’re drifting off to sleep. An internal stash pocket keeps valuables like a headlamp or contact lenses secure, while the included storage sack and compression sack ensure this bag is ready to pack down tight from day one.
- RDS-certified 650-fill-power duck down with ExpeDry™ for lofty, compressible, quick-drying warmth
- ExpeDry™ is a permanent, chemical-free alternative to DWR (Durable Water Repellent), providing quick-drying, loft-retaining performance in wet and humid conditions
- Gender-free design: standard length fits sleepers up to 6'0"
- 100% recycled shell and lining fabrics
- Full-length, left-side 2-way zipper with an anti-snag slider for improved ventilation, versatility, and easy access
- Short right-side zipper offers fold-down comfort and additional ventilation
- Anatomically designed footbox with wrap-around construction provides warmth and roomy comfort
- Internal stash pocket for contact lenses, headlamp, and valuables
- Draft collar seals in warmth and prevents heat loss, even when tossing and turning
- ISO temperature testing adheres to reliable international standards
- Included storage sack and compression sack let you pack down, cinch up, and head out
Bag Temperature Celsius: -9°C
Bag Temperature Fahrenheit: 15°F
Product Care: Machine Wash Cold, Use Liquid Detergent, Do Not Use Powdered Detergent, Gentle Cycle, 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: 23ºF / -5ºC
Tested Limit: 11ºF / -12ºC
Footbox Size: 48.8 in, 124 cm
Hip Girth: 57.9 in, 147 cm
Insulation Material: Duck Down
Insulation Type: Duck Down
Shoulder Girth: 63 in, 159 cm
Stash Pocket: YES
Stuff Sack Size: 15.0 x 8.7 in, 38 x 22 cm
Style Number: M16041
Product Weight: 1,300.0 g
Zipper Location: Left Zip
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