Thread count is typically what determines just how soft and comfortable sheets will be – the higher the thread count, the more comfortable your sheets will be. Often referred to as TPI (threads per inch), this measures how many threads are used per every square inch of fabric. They range anywhere from 150 to several thousand. In general, you should avoid sheets that have a lower thread count than 200 because they won’t feel comfortable on the body. If you buy sheets with a thread count of over 250, you should have a more comfortable night’s sleep.
The type of fabric that you select when buying your sheets can have a significant impact on your comfort level. And with so many materials out there, you should really take the time to research the different materials offered. The most popular choices are cotton, flannel, silk and satin. Cotton is by far the most popular because it is comfortable (warms up to the body nicely) in the winter and sleeps cool in the summer. There seem to be more styles and colors (than other sheet types) out there, probably because there is more of a consumer demand on this fabric than others sold today. Cotton is the best material to use in conjunction with memory foam mattresses, due to its breathability and allowing heat transfer to the memory foam. Winter just isn’t the same without warm flannel sheets. Most people use flannel sheets in the colder months. In addition, many manufacturers have begun to produce flannel comforters and blankets to match sheet sets.
Finally, a silk or satin sheet set is considered the ultimate in luxury. They are extremely soft and will keep you from sweating in the summer. You can literally slide into bed and if you have a satin or silk pillow case, lay your head into a nice, luxurious feel. The only downside to satin and silk sheets is that they tend to slide off of the bed if not fitted properly.