What are the sizes of bed sheets? +The size of a single size bed sheet is 60 x 90 inches with one pillow cover of 18 x 28 inches, a double bed sheet or queen size bed sheet is 90 x 100 inch with 2 pillow covers of 18 inches x 28 inches, and a king size bed sheet will generally measure about 90 Inches X 100 Inches, with matching pillow covers measuring 90 x 104 inch . #What is single size bed sheet? +The single size bed sheet is for a single bed and the standard size is 60 x 90 inches with one pillow cover of 18 x 28 inches. #What is the meaning of 144 TC cotton? +TC stands for thread count per square inch and a 144 thread count indicates that there will be 144 threads in a square inch. #Is twin sheet same as single? +The term single and twin refer to the same bed size. There is no difference between the two and the terms are used interchangeably.