Of all the different varieties of down available, there is nothing in the world that even approaches the warmth and softness of genuine Eiderdown. It is warmer in the winter, cooler in the summer, and more comfortable than anything else known to man. It is so incredibly light, it is literally like sleeping under a warm cloud. Our Eiderdown is hand collected from the birds' nests at Eider Duck sanctuaries, in a special relationship that has existed for generations between the Eiders and the local farmers. The birds are not disturbed, and are actually attracted to these safe areas because of food supplied by the down collectors. We hand sew the duvet in our special sealed baffle box design. Eiderdown tests at approximately 700 loft, but because of its phenomenal density and cling, it insulates at an amazing equivalent of 850 to 900 loft. The Eiderdown Duvet is available in Twin, Queen, Super Queen, King, Super King and Custom sizes.Available exclusively at DUXIANA in Dallas, TX. Please contact Serena Cole at Duxiana@aol.com or (214) 739-8133 for questions.