Goose Down Envelope Sleeping Bag — 400 or 600 g of Down, 725 to 860 g, Opens Flat Into a Quilt
Down Sleeping Bag Goose Down Envelope Sleeping Bag
A roomy rectangular down bag that unzips into a flat quilt, for warm nights, cabins and car camping.
- Down
- 400 or 600 g
- Bag weight
- 725–860 g
- Warm to
- +10 / +5°C
- 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 rectangular goose-down sleeping bag with a zip down the side and across the foot, so it opens completely flat as a quilt. It measures 200 × 74 cm, uses 400T 20D nylon inside and out, and comes in two warmths: 400 g of down (725 g) or 600 g (860 g).
Two bags of the same colour zip together into a double. Our temperature guide is cautious, because the down hasn't been lab-tested.
A bag on cool nights, a quilt on warm ones.
- Best for
- Spring-to-autumn car camping, cabins and huts, festivals and sleepers who hate feeling wrapped up.
- Think twice if
- A rectangular bag loses more heat around the shoulders than a hooded mummy. For frosty nights, choose the Goose Down Mummy Sleeping Bag in 800 g or more.
Unzips into a quilt
The zip runs down the side and across the foot, so it opens out flat for hot nights, the couch or the back of the car.
Room to move
At 200 × 74 cm and rectangular, there's space to turn over and bend your knees, which mummy bags don't give you.
Two join into one
Two bags of the same colour zip together into a double.
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- Envelope 400 g Comfortable to about 10°C If you sleep cold, about 15°C
- Envelope 600 g Comfortable to about 5°C If you sleep cold, about 10°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.
- UL250 Warm to 15°C 250 g A$249
- Cozy 300 Warm to 3°C 400 g A$299
- Envelope 400 gThis bag Warm to 10°C 400 g A$229
- Mummy 400 g Warm to 8°C 400 g A$259
- Envelope 600 gThis bag Warm to 5°C 600 g A$259
- Mummy 600 g Warm to 3°C 600 g A$289
- Mummy 800 g Warm to −1°C 800 g A$329
- Mummy 1000 g Warm to −5°C 1,000 g A$369
- Mummy 1200 g 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?
Where it sits among every bag we sell, by grams of down
Choose by your coldest nightHighlighted: Envelope 400 g (400 g), Envelope 600 g (600 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.
| Down | Goose down, 400 g or 600 g. The maker's label says 90% white goose down; it hasn't been independently tested. |
|---|---|
| Weight | 400 g fill: 725 g bag, about 800 g with its sack 600 g fill: 860 g bag, about 945 g with its sack (maker's figures) |
| Maker's suggested range | 400 g: 5 to 20°C 600 g: 0 to 15°C |
| Comfortable to (our guide) | 400 g: about +10°C 600 g: about +5°C |
| Size | 200 × 74 cm, rectangular |
| Shell and lining | 400T 20D nylon, splash-resistant, both sides |
| Zip | YKK zip down the side and across the foot, so it opens completely flat as a quilt. Two bags of the same colour zip together. |
| In the box | Sleeping bag and 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.
-
Fleece Sleeping Bag LinerA soft fleece layer: extra warmth inside your bag, or a light summer bag on its own.
-
Inflatable Pad With PillowA cushioned air pad with its own pillow and a built-in pump. No puffing, no separate pillow to pack.
-
Inflatable Camp PillowA light, soft-topped air pillow that folds into a pocket.
-
Compression Stuff SackSquash 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
Is 400 g or 600 g right for me?
Can I use it as a doona at home?
Which size should I buy?
Are the temperature ratings lab-tested?
Comfort, limit, extreme: which one do I use?
How do I store and wash a down bag?
When will it arrive?
Will my order arrive in one parcel?
Will I pay duty or GST on delivery?
What if it isn't right?
- 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.