Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double

Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double

600 g / Red
$289.00 AUD
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Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
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  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
  • Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double
Goose Down Mummy Sleeping Bag — 400 to 1,200 g of Down, 870 g to 1.7 kg, Zips Into a Double

Down Sleeping Bag Goose Down Mummy Sleeping Bag

Real goose down in five warmths, from summer nights to sub-zero, for well under what the big outdoor names charge.

$289.00 AUD
Down
400–1,200 g
Bag weight
0.87–1.7 kg
Warm to
+8 to −8°C
Full specification
Down fill
Colour
  • Tracked delivery Australia-wide, A$19.95 on orders from A$100 (A$9.95 under): 1–3 business days to dispatch, then 10–20 business days on the way. Order a month before your trip. Shipping
  • 30-day returns. We pay the postage if it's faulty or not as described. Returns
  • Every figure on this page is the maker's own or our clearly labelled guide. No made-up lab ratings.

A classic goose-down mummy bag in five fill weights, from a 400 g summer bag to a 1,200 g bag for frost and snow. The cut is 210 × 80 cm, tapering to 50 cm at the feet, with a drawcord hood, windproof collar and a two-way YKK zip. Left- and right-zip bags join into a double.

We list every fill weight with its whole-bag weight, and give our own cautious guide to how cold each one goes. The maker labels the fill as 95% white goose down; we haven't had it lab-tested, which is exactly why our temperature guide errs on the warm side.

Choose your warmth by the grams of down.

Best for
Car camping, hut trips and first overnight hikes, where a warm, roomy bag matters more than every gram.
Think twice if
At 0.87 to 1.7 kg it's heavier than premium ultralight bags of the same warmth. If you're counting grams on a long walk, the Ultralight Summer Down Bag (UL250) packs smaller.

  • Five warmths, one bag

    400 g of down for summer, 600–800 g for three seasons, 1,000–1,200 g for frost and snow. The table below turns grams into overnight lows.

  • Zips into a double

    A left-zip and a right-zip bag join into one. Ordering two for a couple? Message us first and we'll make sure you get a pair.

  • Numbers you can check

    We print the grams of down and the whole-bag weight for every size, and our temperature guide leans cautious because the down hasn't been lab-tested.

Warm enough for your trip?

Plan on the “warm to” figure: our own cautious guide, or the maker's comfort rating where that's what we quote. If you sleep cold, or you're not sure, add 5°C. And if you're torn between two bags, take the warmer one: a bag that's too warm, you unzip; one that's too cold, you can't fix at 2 am.

Compare it with every bag we sell
  • Mummy 400 g Comfortable to about 8°C If you sleep cold, about 13°C
  • Mummy 600 g Comfortable to about 3°C If you sleep cold, about 8°C
  • Mummy 800 g Comfortable to about −1°C If you sleep cold, about 4°C
  • Mummy 1000 g Comfortable to about −5°C If you sleep cold, about 0°C
  • Mummy 1200 g Comfortable to about −8°C If you sleep cold, about −3°C

Is it the right bag for your trip?

Pick the coldest night you expect. We'll show every bag and quilt that's warm enough, lightest first, and mark this one if it makes the cut.

How cold will your coldest night be?
  1. UL250 Warm to 15°C 250 g A$249
  2. Cozy 300 Warm to 3°C 400 g A$299
  3. Envelope 400 g Warm to 10°C 400 g A$229
  4. Mummy 400 gThis bag Warm to 8°C 400 g A$259
  5. Envelope 600 g Warm to 5°C 600 g A$259
  6. Mummy 600 gThis bag Warm to 3°C 600 g A$289
  7. Mummy 800 gThis bag Warm to −1°C 800 g A$329
  8. Mummy 1000 gThis bag Warm to −5°C 1,000 g A$369
  9. Mummy 1200 gThis bag Warm to −8°C 1,200 g A$399

of our bags and fill weights will keep you warm enough. Lightest first, so the top one is the lightest that will do the job.

Read the full guide: trips, safety and what else to pack

  • Plan for the coldest night

    Hills, valleys and inland camps get much colder than the forecast for the nearest town. Check the overnight low for where you'll actually sleep.

  • If in doubt, go warmer

    Being too cold at night isn't just a bad night's sleep. A long, cold night in a bag that's too thin can tip into hypothermia, and there's no fixing it at 2 am.

  • The mat matters as much as the bag

    Down underneath you is crushed flat, so the ground steals your heat. Below freezing, use an insulated mat with an R-value of 4 or more.

  • Help the bag help you

    Change into dry clothes, eat something before bed, and wear a beanie. A bag holds warmth in, but it can't make it.

Which one?

Down fillBag weightComfortable to (our guide)Price
400 g870 g+8°CA$259
600 g1,070 g+3°CA$289
800 g1,290 g-1°CA$329
1,000 g1,500 g-5°CA$369
1,200 g1,700 g-8°CA$399

Same bag, five warmths. Bag weights are the maker's; the temperature column is our cautious guide.

Where it sits among every bag we sell, by grams of down

Choose by your coldest night

Highlighted: Mummy 400 g (400 g), Mummy 600 g (600 g), Mummy 800 g (800 g), Mummy 1000 g (1,000 g), Mummy 1200 g (1,200 g). The other marks are our other bags and fill weights.

The numbers

Taken from the maker's own listing and spec cards for this exact model; anything marked our guide is ours. Where the maker doesn't publish something, the line is left out rather than guessed.

DownGoose down in five fill weights: 400, 600, 800, 1,000 or 1,200 g. The maker's label says 95% white goose down; it hasn't been independently tested.
Whole-bag weight400 g fill: 870 g
600 g fill: 1,070 g
800 g fill: 1,290 g
1,000 g fill: 1,500 g
1,200 g fill: 1,700 g
(maker's figures)
Comfortable to (our guide)400 g: about +8°C
600 g: about +3°C
800 g: about -1°C
1,000 g: about -5°C
1,200 g: about -8°C
Size210 × 80 cm, tapering to 50 cm at the feet. Suits people up to about 185 cm.
Shell and lining400T nylon ripstop with a water-resistant finish; soft pongee lining
ZipYKK two-way zip. A left-zip and a right-zip bag join into a double.
HoodDrawcord hood with a windproof collar; 3D footbox
In the boxSleeping bag and compression storage sack

“Warm to” is the figure we'd plan on: our own cautious guide, or the maker's comfort rating where that's what the table quotes. About the temperatures: Our guide, not a lab rating. It is set on the cautious side because nobody has lab-tested this down. Brands like Sea to Summit pay for an independent EN/ISO 23537 test; nobody has done that for this bag, and we won't pretend otherwise. So compare on grams of down and bag weight first: they're physical quantities. How to read them

Complete your sleep system

A bag is half of a warm night. Here's what else makes it work, and what people usually add.

  • Ultralight Sleeping Bag Liner — Keeps Your Bag Clean, Adds a Little Warmth, Packs to a Fist
    Ultralight Sleeping Bag Liner

    The cheapest way to make a down bag last longer: sleep in this, wash this.

  • Self-Inflating Foam Camp Pillow — 46 × 30 cm, 8–10 cm Loft, 320 g
    Self-Inflating Foam Pillow

    Open the valve and it fills itself: a foam camp pillow that feels like one from home.

  • Egg-Crate Foam Sleeping Mat — R 2.5 With Reflective Foil, 330 g, Folds to 56 × 14 cm
    Egg-Crate Foam Mat

    The mat that can't go flat: closed-cell foam, R 2.5, and light enough to strap on anywhere.

  • Sleeping Bag Compression Sack — 210T Nylon, Four Straps, S to XL
    Compression Stuff Sack

    Squash your sleeping bag to half its size with four straps.

A mat rated for the season

The ground takes more heat than the air, and down underneath you is crushed flat. As a rough guide: an R-value of about 2 for summer, 3 to 4 for three seasons, and 5 or more on snow.

A way to keep it dry

Wet down stops insulating. Pack the bag in its compression sack inside a dry bag or pack liner, and air it out when you reach camp.

Questions

Which fill weight should I pick?
Pick for the coldest night you expect, then go one step warmer if you sleep cold. Roughly: 400 g above +8°C, 600 g to about +3°C, 800 g to about −1°C, 1,000 g to about −5°C, 1,200 g to about −8°C. Always pair it with a mat rated for the season.
Can two bags zip together?
Yes, when one bag zips on the left and the other on the right. Message us before you order two and we'll arrange a matching pair.
How do I store it?
Travel in the compression sack, but store it loose (a large cotton bag or hanging) so the down keeps its loft.
Which size should I buy?
As a rule, pick a bag at least 15 cm longer than you are, so your feet don't press into the down and make a cold spot. The spec table above gives the length, or the height the maker says it fits. If you're between sizes, or like to sleep with a water bottle or clothes inside, go up.
Are the temperature ratings lab-tested?
No. Each temperature on this site is either the maker's own figure, labelled maker, or our own cautious guide, labelled our guide. None of these bags has an independent EN/ISO 23537 lab report, so we lead with fill weight and bag weight: physical quantities you can compare. Treat any temperature as a starting point and allow a margin, especially if you sleep cold.
Comfort, limit, extreme: which one do I use?
Comfort is the temperature a cold sleeper stays comfortable at; limit is where a warm sleeper, curled up, still sleeps. Extreme is survival only: never plan on it. Most people should plan on the comfort figure, and on a warmer mat than they think they need.
How do I store and wash a down bag?
Store it loose in its storage sack, not squashed in the compression sack. Wash it rarely, with a down-specific wash on a gentle cycle in a front loader, then tumble dry on low with two clean tennis balls until no clumps are left. It can take a few hours. A liner means you'll wash the bag far less often.
When will it arrive?
We dispatch in 1–3 business days, then it's 10–20 business days on the way to Australia. There's no warehouse or shopfront in between, which is why it takes longer and costs less. If you have a trip booked, order at least four weeks before you leave. You'll get a tracking number by email when the parcel is scanned. Full details on the Shipping page.
Will my order arrive in one parcel?
Gear from the same maker usually travels together. If your order has gear from more than one maker, it can arrive in two or three parcels, sometimes a few days apart. You'll get an email with a tracking number for every parcel, so you always know what's on the way.
Will I pay duty or GST on delivery?
No. Orders under A$1,000 clear into Australia without additional duty or GST, so there's nothing to pay when your parcel arrives.
What if it isn't right?
You have 30 days from delivery to return it unused and in its packaging. If it's faulty or doesn't match what we published, we pay the return postage and refund in full. See Returns.

More from this shelf

  • Tracked delivery Australia-wideA$9.95 on orders under A$100, A$19.95 from A$100. No duty or GST to pay on delivery.
  • Every number publishedGrams of down and weight on every bag, the R-value wherever the maker publishes one, capacity and weight on every pot, and a note wherever the maker's figures are unclear.
  • 30-day returnsUnused and in its packaging. We pay the postage if anything is faulty or not as described.
  • Replies within 24 hoursEmail us Monday to Friday and a person answers, not a bot or a call centre.