Down jacket filling: fill power, goose down, and small feathers

Sleeping under a soft Goose feathers duvet has become an increasingly popular choice in recent years. There are many reasons for this preference. In addition to the convenience of making the bed quickly in the morning, duvets offer benefits in terms of hygiene and allergies compared with classic wool blankets. There is also a wide range of options to choose from in terms of warmth and weight, thanks to fill power and the filling. To make the right choice, it is essential to understand the technical characteristics of these products.

Down or feathers? How to choose the filling for a double Down Duvet

Goose feathers bed duvets are distinguished first and foremost by the type and quality of the feathers used as filling. Completely excluding synthetic alternatives, there are two main types of filling: down and feathers.

Down has an appearance similar to a soft tuft and is primarily defined by its origin. Down is the finest filling for duvets.

On the other hand, feathers are stiffer and have a central part called the quill, from which the feather filaments extend. Although they provide good thermal insulation, they are inferior to down in this respect.

Goose feathers: Fill power

In addition to the quality of the feathers, another crucial parameter when choosing a duvet is fill power. You may have noticed that a double duvet can be lighter while also being warmer than a single one.

Fill power measures the filling capacity of down and is the ratio between the volume of the filling and its weight. This value represents not only warmth but also the quality of the product. Duvets with a fill power above 650, indicating a high volume-to-weight ratio, are considered high quality.

A high volume and low weight indicate that the duvet is filled with high-quality down. This makes it possible to achieve greater volume without significantly increasing the duvet's overall weight.

800 fill power: is it good quality?

Fill power is measured in CUIN (Cubic Inch) per ounce, representing the ratio between volume in cubic inches and weight in ounces. This value can range from 400 to 850. A duvet with a fill power of 500 is considered medium quality, with poor-quality feathers.

For a duvet of excellent quality, you should choose a fill power above 600. If you are looking for the highest level, choose models with a fill power between 650 and 850. Therefore, a goose down duvet with 800 fill power is certainly of excellent quality.

Duvet filling and fill power

It is important to distinguish between the type of filling and fill power when evaluating double or single duvets. These two parameters are related, but they represent different characteristics.

A concrete example is provided by winter duvets and mid-season duvets, which may have high-quality fillings and excellent fill power but offer different levels of warmth depending on the filling weight used. This means that it is possible to find duvets suitable for the different seasons of the year.

Difference between natural filling and synthetic filling

It is also important to mention the difference between natural filling, such as goose down filling, and synthetic filling. Synthetic duvets can be made from materials such as microfiber or polyester. Among synthetic fibers, there are silicone fibers that insulate well against the cold but may not be highly breathable. Microfiber is warmer and more comfortable than other synthetic materials, but it rarely reaches the standards of lightness, thermal insulation, and thermoregulation offered by feather duvets. Their average lifespan is also shorter, at around 5 years.

In conclusion, the choice between natural and synthetic filling should be based on your personal needs. However, it is important to pay attention to the quality of the materials to ensure comfortable and healthy nights of sleep. For more information about the different types of duvets, you can consult the articles on our website to learn how to choose a duvet and pair it with high-quality bed linen.