Fill Power of a Down Duvet

What is the Fill Power of a down duvet? - Fill Power is a standard measurement that indicates the quality of the down filling in a duvet. You may have noticed a wide range of duvets on the market and wondered why their prices vary so greatly. The answer is quite simple - not all fillings are created equal. The quality of the down filling depends on various factors such as its source, heat retention, softness, weight and overall comfort. The source of the down greatly influences its quality. While you can find duvets filled with either duck or goose down, goose down is considered superior. Additionally, the age of the goose plays a role in the quality of the down, with older geese typically producing better down. Furthermore, the region where the geese are raised also impacts the quality of the down. Down from geese raised in colder regions, such as northern Europe, is highly sought after for its softness. The fill power of a down duvet is a crucial factor in determining its quality and value. It helps differentiate between duvets, allowing you to make an informed decision when purchasing. When selecting a down duvet, it is important to aim for one that is efficient, lightweight, comfortable and offers adequate insulation. The higher the fill power, the better the duvet, as it indicates the ability of the down to trap air, which is a natural and effective insulator.

Fill Power is a crucial factor to consider when purchasing a down duvet. It measures the efficiency of the duvet in terms of its insulating capacity. The scale used to measure Fill Power varies depending on the region - it can range from 1 to 10 in Europe, or 100 to 1000 in the UK and US. The higher the Fill Power rating, the better the quality of the down. For example, a duvet with a Fill Power rating of 600 is of lower quality compared to one with a rating of 800. The latter offers 33% more fluffiness, better shape retention and superior insulating power. Duvets with a Fill Power of 900 or 1000 are considered the best of the best, offering exceptional quality, higher insulating properties and increased comfort. While these duvets may come at a higher price, they are well worth the investment due to their longevity and superior performance. It is important to be cautious when purchasing down duvets, as cheaper options may not offer the same level of quality. Many inexpensive duvets are filled with lower quality down from Asia, which may not last as long or provide adequate insulation. It is recommended to seek detailed information about the Fill Power of each duvet before making a purchase. Always insist on clear and comprehensive information from sales assistants to ensure you are investing in a high-quality product that will stand the test of time.

How is the Fill Power of down measured? - In technical terms, Fill Power  is the volume or space occupied by 28.35 grams (One ounce) of down under normal or standard conditions. The quality and physical characteristics of the down will determine how much volume it occupies. High-quality down will be fluffier and more voluminous, as it has the ability to trap more air within it. This means that down with an FP of 800 will occupy more volume than down with an FP of 600, providing better insulation, softness and lightness for a more comfortable experience. 

Can you easily distinguish between good quality down and lower quality down? - Yes, it is simple to recognize the difference. Down is composed of tiny and exceptionally fine filaments, each with a central nucleus. The length and abundance of these filaments determine the quality of the down, as well as its insulation and FP coefficient. High quality down will have longer and more abundant filaments, resulting in a longer lifespan, better shape retention and a fluffier, lighter and more comfortable duvet.