Which are the best sheets to stay cool in summer? One of the most important parts of buying sheets for your home is fabric, texture, and comfort. No doubt the best sheets to stay cool are natural with minimum chemical processing, but there is more to that list. Along with cotton, there is also tencel, linens and bamboo fabrics that are both natural and soothing for you skin. If you suffer from skin sensitivity then go for natural fabric which is hypoallergenic and keeps you both cool and comfortable throughout the night.