Linen is comfortable all year round, keeping you cool and summer and warm in winter, so you don't have to swap your sheets as the seasons change. It’s all down to the fibers, which are longer than cotton and therefore create a looser weave within the fabric. Linen's moisture-wicking abilities play a part, too (linen can also absorb up to 20% of its own weight in moisture), wicking away perspiration and effectively regulating your body temperature–great news for anyone who gets really hot or cold at night.