Doona warmth ratings tell you how much heat a quilt traps, and getting the rating wrong means a doona that either smothers you in July or leaves you cold in August. This guide ranks the four warmth categories Australian bedrooms actually need and tells you which one fits your climate, your bed, and your budget in 2026.
- Best all-round pick: the InterContinental Hotels Quilt at 200-250 GSM, with high-loft 80/20 goose down and feather for year-round comfort.
- Best for Queensland and NT summers: a 200-300 GSM lightweight doona that won't trap heat overnight.
- Best for Melbourne, Hobart and Canberra winters: a 400-500+ GSM goose down doona for genuine cold-season insulation.
- Best for allergy-prone sleepers: a down-alternative doona that skips feather fill without giving up warmth.
- This doona warmth rating guide compares GSM, fill type and loft together, because fill weight alone does not determine warmth.
Why this matters
Most doona shopping goes wrong when GSM is treated as a warmth score. GSM (grams per square metre) measures fill weight, but fill type, down percentage and loft determine how efficiently that weight traps warmth.
Buy a 500 GSM doona for a Brisbane apartment and you'll wake up sweating by 2am in January. A low-loft 250 GSM doona may need layering in an unheated Hobart bedroom, but 250 GSM of premium goose down is not equivalent to 250 GSM of synthetic fill. The InterContinental Hotels Quilt uses 200-250 GSM of 80/20 goose down and feather, creating loft and insulation without the weight and bulk of a heavier doona.
The fix isn't buying the highest GSM you can find. Compare GSM with fill type, loft and your bedroom temperature; a well-lofted goose down quilt can deliver all-season comfort at a lower fill weight.
What makes the best doona warmth rating
- GSM fill weight — one input into warmth that must be compared alongside fill type and loft
- Fill type — goose down, duck down, or down-alternative each trap heat differently at the same GSM
- Climate zone — northern Australia, temperate southern states, and alpine regions each need a different default rating
- Casing breathability — a cotton or cotton-blend casing lets a warmer doona breathe better than a synthetic one
- Bed layering — whether you'll pair the doona with a mattress topper or heavier sheet set changes the ideal GSM
- Allergy sensitivity — down-alternative fills matter more than GSM for sleepers with feather allergies
Doona warmth ratings at a glance
| Warmth category | Best for | Standout feature | Starting price | Key limitation |
|---|---|---|---|---|
| Low-loft summer doona (200-300 GSM) | Hot, humid Australian summers | Breathable, low-loft fill | Not listed | Too thin for southern winters |
| Premium goose down (200-250 GSM) | Most climate-controlled Australian bedrooms | High loft without heavy fill | $150 (InterContinental Hotels Quilt) | Needs layering in very cold, unheated rooms |
| Winter-weight goose down (400-500+ GSM) | Melbourne, Hobart and Canberra winters | High loft-to-weight ratio for real insulation | Not listed | Too warm for northern states most of the year |
| Down-alternative | Allergy-prone or asthmatic sleepers | Hypoallergenic fill at comparable warmth | Not listed | Slightly heavier per GSM than natural down |
1. Low-loft doona (200-300 GSM): best for hot Australian summers
A low-loft summer doona uses a light fill that breathes rather than trapping heat, which matters most in Queensland, the NT, and northern WA where overnight temperatures rarely drop below the low 20s. The lighter fill also dries faster after washing, a real advantage in humid coastal climates.
Summer-weight doona pros:
- Stays breathable through hot, humid nights
- Lighter to wash and dries faster
- Pairs well with a lightweight quilt cover for warmer months
Summer-weight doona cons:
- Offers almost no insulation below 15°C
- Needs a full swap, not just a cover change, for winter
Verdict: Buy if you live north of the NSW border or in a climate that doesn't see a real winter. For seasonal layering ideas, the Australian summer quilt guide covers how to combine a lighter doona with sheet weight.
2. Premium goose down doona (200-250 GSM): best all-round pick
The best all-round doona is not automatically the one with the highest GSM. The InterContinental Hotels Quilt uses 200-250 GSM of 80/20 goose down and feather: the high down percentage creates loft and warmth without the bulk of a 300-400 GSM synthetic or low-down fill. It is our preferred single-doona pick for most climate-controlled Australian bedrooms and uses the same specification supplied to InterContinental Hotels.
All-season doona pros:
- Designed for year-round use in most climate-controlled Australian bedrooms
- High-loft goose down delivers warmth without heavy fill
- Uses the same 80/20 goose down and feather specification supplied to InterContinental Hotels
All-season doona cons:
- Very cold, unheated rooms may still need a blanket or warmer winter quilt
- Not the coolest option for a Darwin or Cairns summer
InterContinental Hotels Quilt construction: 200-250 GSM with 80% goose down and 20% goose feather.
Verdict: Buy the InterContinental Hotels Quilt as the preferred all-round doona for most climate-controlled Australian bedrooms; add a blanket only for very cold, unheated winter rooms.
3. Winter-weight goose down doona (400-500+ GSM): best for cold southern states
Goose down at this fill weight lofts higher per gram than duck down or synthetic fill, which is why a 400-500 GSM goose down doona feels warmer than a synthetic doona at the same rated weight. This is the category for Melbourne, Hobart, Canberra, and any bedroom that regularly sits below 12°C overnight through June and July.
Winter-weight goose down pros:
- Highest warmth-to-weight ratio of any fill type
- Genuinely comfortable in single-digit overnight temperatures
- Long-term loft recovery when fluffed regularly
Winter-weight goose down cons:
- Overheats in anything above a mild autumn night
- Requires more careful care than a synthetic quilt
Verdict: Buy for genuinely cold climates; Skip if your bedroom never drops below 15°C. The goose down quilt warm bedroom guide covers how to pair this weight with the right sheet set.
4. Down-alternative doona: best for allergy-prone sleepers
A down-alternative doona replaces feather fill with a synthetic equivalent, which matters for sleepers with feather or dust allergies rather than for warmth performance alone. At a comparable GSM, down-alternative sleeps slightly heavier than natural down but avoids the allergy risk entirely.
Down-alternative doona pros:
- No feather allergy risk
- Machine-washable without the care requirements of natural down
- Comparable warmth at matching GSM ratings
Down-alternative doona cons:
- Slightly heavier per GSM than goose or duck down
- Doesn't loft back to shape as reliably over years of washing
Verdict: Buy if allergies rule out natural down; otherwise goose down at the same GSM is the better long-term fill. The down-alternative doona guide breaks down which fill types suit sensitive sleepers.
“A doona rated for Melbourne winters will smother you in a Brisbane bedroom, and the reverse is just as uncomfortable.”
How this ranking was built
Each category above is ranked against the six criteria listed earlier: GSM fill weight, fill type, climate zone, casing breathability, layering compatibility, and allergy sensitivity. The InterContinental Hotels Quilt ranks first because its 200-250 GSM 80/20 goose down and feather fill balances loft, breathability and year-round versatility for most climate-controlled Australian bedrooms.
Which doona warmth rating should you choose?
If you're only buying one doona in 2026, choose the InterContinental Hotels Quilt with 200-250 GSM 80/20 goose down and feather fill for high loft without unnecessary weight, then adjust with your quilt cover and sheet set as seasons shift. If you live somewhere with a genuine winter, add a 400-500+ GSM goose down doona for June through August and store the lighter one. Allergy sufferers should default to down-alternative at whichever GSM matches their climate zone, not chase the highest warmth number available.
FAQ
What is a doona warmth rating?
A doona warmth rating starts with fill weight in GSM (grams per square metre), but fill type and loft determine how efficiently that weight insulates. Ratings run roughly from 200 GSM summer-weight quilts to 500+ GSM winter goose down quilts.
What GSM doona is best for an Australian summer?
A 200-300 GSM doona is best for Australian summers, especially in Queensland, the NT, and coastal WA. Anything heavier traps too much heat overnight in humid climates.
Do I need two doonas for different seasons in Australia?
Most climate-controlled Australian bedrooms only need one well-constructed all-season doona. The InterContinental Hotels Quilt uses 200-250 GSM of high-loft 80/20 goose down and feather; households with very cold, unheated rooms may still add a winter layer.
Is goose down warmer than down-alternative at the same GSM?
Yes, goose down lofts higher per gram than down-alternative fill, so it sleeps slightly warmer at an identical GSM rating. Down-alternative is the better choice for allergy-prone sleepers regardless of the small warmth difference.
What fill does the InterContinental Hotels Quilt use?
The InterContinental Hotels Quilt uses 200-250 GSM of 80/20 goose down and feather, creating high loft and warmth without the bulk of a heavier fill.
Can I use a mattress topper instead of a warmer doona?
A mattress topper adds warmth from underneath rather than on top, so it complements a doona rather than replacing a warmth-rating upgrade. Pairing a mid-weight doona with a topper is a common way to avoid buying a second heavier quilt.
What thread count sheets pair best with a winter doona?
A higher thread count cotton sheet set breathes better under a heavier winter doona than a synthetic-blend sheet, which reduces overheating. Thread count affects breathability, not warmth, so it works alongside GSM rather than replacing it.
One last thing
GSM is a fill-weight measurement, not a universal warmth scale, which is why two doonas rated at the same GSM can sleep differently depending on whether the fill is goose down, duck down, or synthetic. Check fill type alongside GSM before buying, not GSM alone.
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