I think that flannel sheets are the best type to sleep on throughout the whole year. Of course in the winter they are the best with the fact that when you get into bed they are warm already. Also the flannel is very soft and much more inviting than a crisp linen sheet. We also like the flannel in the summer as it absorbs our sweat and still feels good. We do have a large bed, being large people, and these sheets with the large pocket corners fit very well and stays put around the edges. The sheets do kinda bunch up in the middle and the sides but the softness of them out weighs the folds around the sides. There are so many colors and prints in this product and I can have a change with every holiday, or season. They wash up very well and mine have never balled up or have little tears near the seams with the larger mattresses. Even in the summer when I do a lot of hanging sheets and towels outside in the sun, these sheets have stayed soft and comfortable.