FAQs   We have tried to answer some of the most common questions that people have regarding goose down bedding and down comforters. If there is something that you would like answered, but do not see the solution on this page, please send us an e-mail and ask! We love to hear from our customers and will try our best to immediately get you the answers that you are searching for! From time to time, we will update our frequently asked questions page, so be sure to check back every time you visit us. 1. What is the origin of the down filling material? All of the down filling material used in products sold by Ultimate Down Comfort comes from large white domestic Legarth Geese (Anser Anser Domesticus). By using only the down from this specific supply of geese, our customers are guaranteed authentic, pure unadulterated high quality White Goose Down Or Prime Filled Down! 2.What is meant by fill power? "Fill Power" is a term used in the Down Bedding industry that tells the quality of the down filling material. The higher the fill power is, the better the down material is. To test the filling power, one ounce of down is compressed with a pre-determined weight. When the weight is removed, the down expands and the space it occupies is measured in cubic inches. A comforter with a high fill power won't weigh as much as one with a lower fill power, but will be just as warm as the insulating power is tremendous! You will remain extremely comfortable all throughout the night when you use down comforters & covers that have high fill power. 3.Does more filling weight mean the product should be more expensive? If the product has a higher fill power, it will be more expensive for the same weight of down. When products have a lot of fill and are heavier, they do not necessarily have to be more expensive. The quality of the down fill and the shell material play a very important part in determining the price of a product and quality of a product. 4.Why would I want a higher fill power? In order to keep you warm and comfortable, the down needs to trap and create an insulating value. The higher the fill power is, the more air the down will trap, resulting in a warmer product which will allow for a comfortable sleep. If two products have the same weight of fill and one has a filling power of 550 and the other one has a filling power of 800, the warmer and more lofty looking product will be the "800". The 800 fill power down will last up to four times longer than the 550 fill power material! 5.What is meant by thread count? Thread count is the sum of the warp and weft of the threads per inch. The higher the "thread count" is the tighter woven the material is. The material will have a smoother and softer feel to it when it has a higher thread count. Covers made of 360 thread count, 100% cotton sateen are the best for down filling material. Covers that have too high of a thread count will not allow the down to breathe properly and covers with too low of a thread count may leak the down over time. 6.How do I clean a my down filled product? We recommend having your down filled product dry cleaned by professionals. Always follow the instructions on the Care Label. If you prefer, you can also clean your down filled products at home in your own washing machine. In order to do this, we recommend that you purchase a bottle of NuLoft? Down Washing Detergent. 7. What is the difference between prime filled down and feathers? Down is a three dimensional cluster that can trap air in its filaments. Feathers are two dimensional and have very little ability to trap air, they are best used in pillows to increase the firmness.