Fill Power and What It Means for Your Bedding Comfort

If you’re diving deeper into bedding quality, one number you’ll hear again and again is fill power. But what does it actually mean? 

Fill power measures how much space one ounce of down occupies, and it’s a direct indicator of insulating ability and loft. Higher fill power down traps more air, which means better warmth with less weight — a feature prized in premium duvets and toppers. 

For example, luxury products like the European Goose Down Duvet (85% Down) have excellent natural insulation and fill power that results in lofty, warm bedding without heavy weight. 

Lower fill power doesn’t necessarily mean lower comfort — it can mean a more substantial feel. Duvets and pillows with a higher feather ratio (like the Duck Feather & Down Pillow) provide structure and resilience, which many sleepers prefer. 

This concept also applies to mattress toppers. The Combination Mattress Topper (Down + Feather & Down) uses a layer of softer down with a supportive feather base to balance plushness and resilience — higher fill power means loftier comfort and longer-lasting performance. 

Key points about fill power:

• High fill power = better insulation per ounce, lighter and fluffier bedding. 

• Lower fill power + feathers = firmer support and structured feel.

• Great for temperature regulation, longevity, and tailored comfort. 

Choosing the right fill power helps ensure you get both comfort and value from your bedding investment.