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At Linens Delight, we expressly identify fill power and weight for each product for each reference and comparison. The two main parameters to look out for in the down product selection process are Fill Power and Fill Weight. They are two separate and distinctively different aspects of the product:

Fill weight

the quantity of down (we measure in ounces) inside the shell of the duvet or pillow.  For easy reference, we categorize the fill weight into Summer Ultra-Light, Summer, All-season, Winter and Winter Extra-Warm for comforters to reflect the warmth they provide. Soft, Medium and Firm for pillows to reflect the support they provide.

Fill power

a measure of quality and fluffiness. The higher the fill power, the higher the quality. More details on fill power in the section below.

Besides the information associated down quality and quantity, there are other important details to pay attention to, such as the duvet/pillow fabric material, baffle box design for duvet (to minimize the shifting of down) and other accessories such as corner ties.

For additional information about down quality, refer to our Down vs. Feather page.

What is fill power/ loft?

Fill power is a measurement of the amount of space (in cubic inches) that1ounce of down will occupy. The measurement is commonly referred to as “loft” and it is a scientific reflection of down quality and fluffiness. Typically ranged between 500 loft and 1,000 loft, the higher the number, the better the down and the more warmth it will provide.

High fill power is attributed to larger down clusters. As discussed in the Down vs Feather section, since goose down clusters are generally larger and loftier, high fill power down (usually >750 loft) tends to be goose down. The down products we offer range from 600 loft to 800 loft and the goose down products range from 600 loft to 950 loft.

The image show the fluffy quality of our down at various fill power grades. The down in each cylinder weights equally at 2 grams, the volume of the high loft down demonstrates the superior compressibility and insulating property.  

Is the higher fill power the better? 

High loft reflects the down’s high quality and high warmth-to-weight ratio. However, that does not mean it is always the best choice for everyone. We will make recommendations based on customers’ specific needs. Contact us for any customization.

Other Down Guides..

Key Considerations for down duvet/ pillow selections

Key Considerations for down duvet/ pillow selections

Down Duvets  High loft down has a higher warmth-to-weight ratio, so it can achieve the same degree of warmth with a lower fill weight (i.e. a lighter duvet).    Given the...

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How do I choose a fill level for duvets (summer, all seasons, and winter)?

How do I choose a fill level for duvets (summer, all seasons, and winter)?

Each duvet series comes with 3 standard fill weights, namely Summer, All Seasons and Winter, to suit users with different warmth preferences. A higher fill weight would provide more warmth....

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What is the difference between down from different origins?

What is the difference between down from different origins?

The down in our products is ethically sourced from many parts of world, including Canada, Europe and Asia. Some countries, such as Hungary and Poland, have a long tradition of...

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What is the difference between goose down and duck down?

What is the difference between goose down and duck down?

Goose Down or Duck Down which is better? When comparing goose down and duck down of similar quality, i.e. the same fill power (loft), there is little physical difference between...

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