Construction Its cover is designed with two strips of mesh fabric to promote air circulation, let the heat out when you sleep, keep you comf and cool all the night. The fluffy comforter features a sewn-through construction to ensure a uniform fill distribution, preventing shifting or bunching. Warmth This lightweight down comforter is a great lightweight option for hot sleepers, summer months, or people who stay in warm climates. Use it in conjunction with an all-season comforter or a heavier comforter during colder months for maximum warmth. .