As a natural fiber like cotton, linen offers excellent breathability. However, linen is evenmorebreathable than cotton, because the fibers themselves are more hollow, meaning air can flow through more easily. Plus, it usually helps that most linen fabrics have a lower thread count — and thus looser weave — than most cotton fabrics.

'While cotton makes a great choice for bed sheets in either summer or winter, flannel and brushed cotton are excellent options if you are looking for something a little bit more toasty, soft and cozy,' says Nadia.