Enjoy a comfortable night's sleep year round with a down comforter. Down feathers insulate by trapping pockets of air that fend off chills. These feathers come from ducks or geese. If you prefer goose down, look for comforters that state 100% filled goose down, like Karo or Splendour. If you're allergic to down, try synthetic down, found on brands like German Batiste. Synthetic down is just as warm but won't cause your allergies to flare.

Feathers are lightweight helping you to avoid feeling pinned down by your bedding. Winter weight down keeps you warm, even when the temperatures drop and bitter cold winds blow. Lighter summer weight comforters offer just enough warmth without causing you to wake up sweating. Manufacturers rate a down comforter's warmth by fill power. The higher this number, the warmer you'll be. Fill between 500 and 550 is best for hot summer nights. 700 or higher is best for cold winter nights. For those who want something in between, look for fill powers of 600 to 650.

Choose cotton down comforters for optimal comfort. You'll notice that comforters list the thread counts for the cotton cover. Thread counts correlate to the feel of the fabric. Higher thread counts create a softer, luxurious finish, while smaller counts feel stiffer and less luxurious. These counts range from 150 for a standard cotton fabric to as high as 1000. For the greatest in luxury, try the European Damask Goose Down Comforter, It is a 1,000-count goose down comforters in twin, queen, and king.

Down comforters come in a range of sizes from twin to California king. Pay attention to the cleaning instruction, not every comforter is hand or machine washable. Find a great selection of down comforters at Bed Bath Store.