Bed Sheet Thread Count Meaning. Simply put, thread count means the number of threads in a square inch. As you'd expect, thread count generally refers to the number of threads on a piece of cotton sheeting.
For instance, if one inch of fabric has 150 vertical threads and 150 horizontal threads, the thread count number is 300. Thread count is a measure of the number of threads woven into one square inch of fabric. The higher the thread count, the more threads there are within the fabric.