Short answer: Goose down has a higher fill power than duck down — for the same fill weight, it is lighter and loftier. A goose down duvet with 90% down content typically achieves 140–180 mm fill power, while a comparable duck down duvet achieves 120–150 mm. The difference is noticeable but smaller than many guides claim. For most sleepers, high-quality Grade 1 duck down is perfectly sufficient. Goose down is worthwhile if you are looking for maximum lightness with high thermal performance or desire a particularly luxurious winter duvet.
Goose down is considered the best filling for a duvet, with duck down as the more affordable alternative. But is this generally true? As a manufacturer that processes both types of down, we know the differences from our daily quality control — and can honestly say where the extra cost is justified and where it is not.
This guide compares goose down and duck down based on measurable criteria: fill power, weight, thermal performance, durability, and price. No marketing jargon, just facts from production.
Last updated: April 2026
Contents
- What is down — and what distinguishes goose down from duck down?
- Fill Power: The Most Important Difference
- Comparison Table: Goose Down vs. Duck Down
- When is goose down really worth it?
- How to recognize a good down duvet
- Price-performance: What should a good down duvet cost?
- 3 Manufacturer Tips for Buying Down
- Frequently Asked Questions
What is down — and what distinguishes goose down from duck down?
Down is the fine under-plumage of waterfowl. It consists of a tiny core from which three-dimensional branches extend — so-called down clusters. This structure traps air and provides unique thermal performance with minimal weight.
Both geese and ducks produce down. The difference lies in the size of the down cluster: geese are larger birds with larger under-plumage. A single goose down cluster has a diameter of about 10–18 mm, while a duck down cluster is only 6–12 mm. Larger clusters trap more air — thus insulating better with less weight.
Important: These values are averages. A high-quality Grade 1 duck down can outperform an inferior Grade 3 goose down. The quality class (according to DIN EN 12934) is at least as important as the species.
Fill Power: The Most Important Difference
Fill power (also called loft, measured in mm according to DIN EN 12130) indicates how much down expands again after compression. The higher the fill power, the more air the down traps — and the better it insulates with less weight.
Goose Down: 140–180 mm
Premium goose down achieves fill powers of 140 to 180 mm. This means: for the same thermal performance, you need less down. A winter duvet made of goose down weighs 15–25% less than one made of duck down for the same warmth.
Duck Down: 120–150 mm
High-quality Grade 1 duck down achieves 120 to 150 mm fill power. This is not a bad value — it is a very good one. A down duvet with 90% Grade 1 duck down offers excellent thermal performance for most sleepers.
What the difference means in practice
The difference between 130 mm and 160 mm fill power is measurable, but in everyday life, it is difficult for many sleepers to notice. Where it becomes noticeable: with winter duvets with high fill weight. The more down in a duvet, the more strongly the higher fill power affects the total weight and sleeping comfort. For light summer duvets with 200–300 g filling, the difference is minimal.
From our production: We measure the fill power of every incoming down batch — whether goose or duck down. For our 90% down duvets, we use only Grade 1 down with a minimum fill power of 120 mm (duck down) or 140 mm (goose down). Batches that do not meet these values are not processed.
Comparison Table: Goose Down vs. Duck Down at a Glance
| Criterion | Goose Down (90%) | Duck Down (90%) |
|---|---|---|
| Fill Power (Grade 1) | 140–180 mm | 120–150 mm |
| Flake Size | 10–18 mm | 6–12 mm |
| Weight Winter Duvet (135×200) | approx. 900–1,100 g | approx. 1,000–1,300 g |
| Thermal Performance | Excellent | Very Good |
| Moisture Regulation | Excellent | Very Good |
| Odor | Very low | May have a slight initial odor |
| Lifespan | 12–15 years | 10–12 years |
| Allergen Suitability | Yes, with NOMITE | Yes, with NOMITE |
| Price Level (Winter Duvet 135×200) | €200–400 | €100–250 |
When is goose down really worth it?
Not every sleeper needs goose down. The higher fill power makes a significant difference in certain situations — and hardly any in others.
Goose down is the better choice if...
- You are looking for a warm winter duvet that is still lightweight. With a high fill weight (800+ g), the higher fill power is noticeably different. The duvet insulates just as well but weighs less.
- You are sensitive to weight. Some people sleep restlessly under heavy blankets. Goose down offers maximum warmth with minimal weight.
- You want an allergy-friendly duvet. Goose down duvets with NOMITE certification have particularly densely woven covers. In combination with the high fill power, the result is a light, hypoallergenic duvet.
- You prioritize longevity. Goose down retains its loft slightly longer — with good care, up to 15 years.
Duck down is sufficient if...
- You are looking for a summer duvet or an all-season duvet. For light duvets with 200–500 g filling, the difference in fill power is barely noticeable.
- Budget is a factor. High-quality duck down (Grade 1, 90% down content) offers excellent value for money.
- You need a second duvet for guests or children. Duck down duvets provide very good quality at a lower price.
Goose Down Duvet 90% – Winter Duvet
Premium goose down with high fill power for cold winter nights. Cassette construction, NOMITE and Downpass certified. Washable at 60 °C. Made in Germany.
From €299.90
View nowHow to recognize a good down duvet
Whether goose or duck down — the quality of an individual down duvet depends on several factors. Pay attention to these five features:
1. Down Content (at least 90%)
The down content indicates what percentage of the filling consists of pure down — the rest are supportive feathers. A 90/10 blend (90% down, 10% feathers) is the gold standard. Duvets with 60% down content are significantly heavier and less lofty. The down content is more important than the question of goose or duck down.
2. Quality Class according to DIN EN 12934
The European standard DIN EN 12934 defines four quality classes. Class 1 has the highest purity: less than 5% feather content deviation, minimal broken feather content, high cleanliness. Class 3 and 4 contain more broken feathers and impurities — the fill power decreases, and the duvet quickly loses its loft.
3. Certifications
Three seals are relevant for a high-quality down duvet:
- Oeko-Tex Standard 100: Tests for harmful substances in the final product — cover and filling.
- Downpass: Guarantees that no down comes from live-plucking or force-feeding. Traceable back to the farm.
- NOMITE: Identifies down products with mite-proof covers. Important for allergy sufferers.
4. Ticking (Cover Fabric)
The ticking holds the down in the duvet. A good ticking is made of densely woven cotton (Mako batiste or percale) with a yarn count of at least Nm 100. The finer the yarn, the denser the weave — and the less down can escape. With cheap duvets, down can migrate through the fabric to the outside — a sure sign of poor ticking quality.
5. Stitching
The stitching distributes the filling evenly. For winter duvets, cassette stitching with 5–8 cm high baffles is standard — it prevents cold spots. For summer duvets, a flat box stitching is sufficient.
Price-performance: What should a good down duvet cost?
The price of a down duvet depends on four factors: down type (goose vs. duck), down content (60% vs. 90%), quality class, and duvet size. Here's a realistic estimate for the size 135×200 cm:
| Duvet Type | Price Range | What You Can Expect |
|---|---|---|
| Duck Down 60%, Summer Duvet | €80–120 | Solid entry-level, lighter, somewhat heavier than 90%-variants |
| Duck Down 90%, Summer Duvet | €100–150 | Very good quality, light and lofty |
| Duck Down 90%, Winter Duvet | €150–250 | Warm, durable, good value for money |
| Goose Down 90%, Summer Duvet | €120–200 | Premium, ultra-light, maximum fill power |
| Goose Down 90%, Winter Duvet | €250–400 | Top class: light, warm, durable |
Be cautious with duvets under €80 labeled "down duvet". Often, these are duvets with only 30–40% down content — the rest are cheap feathers. These duvets are heavier, less lofty, and lose their shape more quickly. Always check the label for the exact down content and quality class.
3 Manufacturer Tips for Buying Down
As a bedding manufacturer that processes both goose down and duck down, we can give you three recommendations that go beyond the usual advice:
Tip 1: Down content trumps down type.
A 90% duck down duvet class 1 is better in almost all respects than a 60% goose down duvet. Before you pay extra for goose down, make sure the down content is at least 90% and the quality class is correct.
Tip 2: Odour in duck down is not a quality defect.
New duck down duvets can initially have a slight inherent smell – this is due to the natural fatty layer of duck feathers. It dissipates after the first airing or washing. Goose down naturally smells less. Both are normal and not a sign of poor quality.
Tip 3: The right duvet for the right season.
Instead of buying an expensive goose down all-season duvet that is too warm in summer and borderline in winter, invest in two duvets: a light summer duvet (duck down is perfectly sufficient here) and a warm winter duvet (goose down is worth it here). Overall, you pay a similar amount and sleep much better.
Summary
Goose down objectively has higher fill power, is lighter and more durable — but also more expensive. Class 1 duck down with 90% down content is the better choice for most sleepers: it offers excellent thermal performance at a fairer price. Goose down is particularly worthwhile for winter duvets, where maximum lightness with high insulation is required.
More decisive than the question "goose or duck" are: down content (at least 90%), quality class (class 1), and certifications (Oeko-Tex, Downpass, NOMITE). A down duvet that meets these three criteria will accompany you for over 10 years — regardless of whether it's goose or duck down.
Suitable down duvets from BEFA Limburg
Frequently Asked Questions
Which is better, down or goose down?
"Down" is the generic term for the under-feathers of waterfowl — i.e., both goose and duck down. Goose down is a type of down with higher fill power. The crucial factor for the quality of a down duvet is not solely the animal species, but the down content (at least 90%) and the quality class (Class 1 according to DIN EN 12934).
Are 100% goose down good?
100% goose down without feather content sounds ideal, but in practice, it's not necessarily better than 90/10. The 10% supporting feathers give the duvet a bit more structure and stability. Furthermore, 100% down duvets are significantly more expensive. The jump in quality from 90% to 100% is marginal — the price jump is not.
How do I recognize a good down duvet?
Look for five features: at least 90% down content, quality class 1 according to DIN EN 12934, certifications (Oeko-Tex Standard 100, Downpass), a high-quality cotton ticking, and clean box stitching. If any of these features are missing or not declared, steer clear.
How much should a good down duvet cost?
A good down duvet with 90% duck down class 1 in the size 135x200 cm costs between 100 and 200 Euros. For goose down of the same quality, expect to pay 200 to 350 Euros. Duvets under 80 Euros almost always have a low down content or a poor quality class.
Do duck down smell more than goose down?
Duck down can initially have a slight inherent smell, which comes from the natural fatty layer of duck feathers. With high-quality, thoroughly washed duck down (Class 1), this smell is minimal and dissipates after the first airing. Goose down naturally smells less intensely.
Which down duvet for winter?
For winter, we recommend a down duvet with at least 90% down content, box stitching (5–8 cm baffle height), and a filling weight of 800–1,200 g in the size 135x200 cm. Goose down is the better choice here, as the higher fill power provides maximum warmth with lower weight.
Can allergy sufferers use down duvets?
Yes. Contrary to a common misconception, the problem is not the down itself, but dust mites. Down duvets with NOMITE certification have such tightly woven tickings that mites can neither enter nor exit. This applies equally to goose and duck down duvets.
How long does a down duvet last?
A high-quality down duvet lasts 10 to 15 years with good care. Goose down tends to retain its loft slightly longer than duck down. However, the lifespan depends more on care than on the type of down: regular washing and drying in a tumble dryer with tennis balls maintains the loft.