What is a high quality thread count of bed linens?

A high quality thread count for bed linens is above 250 threads per square inch. These resist pilling and have the softest feel, but are more costly than lower count sheets. If on a budget, look for a thread count no lower than 175. More info can be found at: http://interiordec.about.com/od/buyingbedsheets/bb/bedsheets.htm