Thread count (TC) is a measure of the coarseness or fineness of a fabric. Let’s see the technical side of thread count, which means the number of threads woven together in a horizontal and vertical orientation per square inch. You count both lengthwise (warp) and width-wise (weft) threads. So, 100 length-wise threads woven with 100 width-wise threads produce a TC of 200. While 150 lengthwise threads woven with 150 width-wise threads make a 300TC.
Thread count is a highly used phrase for describing luxury bed linen. The idea is the finer you can weave the threads together, the softer and finer the fabric will be, and the more likely it will wear well, evenly, and will soften and become more comfortable with each wash.