The standard size of a queen bedspread is 102 inches by 116 inches. The standard mattress size is 60 inches by 80 inches, which allows the standard bedspread to cover the mattress and sides of a queen bed.
Standard mattresses are 7 to 9 inches deep. Some mattresses are as high as 22 inches deep. If a queen mattress is deep, it may require a larger bedspread, such as one for a king-size bed. Using a mattress pad may also require a larger bedspread.
Comforters, down comforters, duvets and blankets are different sizes than standard bedspreads. Sheets for a queen bed are 60 inches by 80 inches.