A higher thread count simply means there are more threads per square inch, but what is agoodthread count depends on the style of the sheet. For example, good quality percale sheets usually have a thread count of 180 to 300, whereas good quality sateen usually have a thread count of 300 to 600. This is because sateen requires more threads, due to the weave style, than percale does. 

Maintaining Bed Linens: Similar care should be given to other bed linens. Duvet covers and pillowcases usually follow the same washing guidelines as bed sheets. For items like quilts or bed skirts, follow the specific care instructions, as they might require different treatment.