How much do you know about the exact dimensions of mattress sizes? If you have a bed frame, do you know the mattress size to accompany it with? Here is a list of standard mattress sizes and sheets.

Mattress Sizes
Twin : 39 x 75 inches (99 x 190 cm)
X-Long Twin : 39 x 80 inches (99 x 203 cm)
Full : 54 x 75 inches (137 x 190 cm)
Queen : 60 x 80 inches (153 x 203 cm)
King : 76 x 80 inches (198 x 203 cm)
California King : 72 x 84 inches (182 x 213 cm)

Fitted Sheet Sizes
Twin : 39 x 75 inches (99 x 190 cm)
X-Long Twin : 39 x 80 inches (99 x 203 cm)
Full : 54 x 75 inches (137 x 190 cm)
Queen : 60 x 80 inches (153 x 203 cm)
King : 76 x 80 inches (198 x 203 cm)
California King : 72 x 84 inches (182 x 213 cm)

Flat Sheet Sizes
Twin : 66 x 96 inches (167 x 243 cm)
X-Long Twin : 66 x 102 inches (167 x 259 cm)
Full : 81 x 96 inches (205 x 243 cm)
Queen : 90 x 102 inches (228 x 259 cm)
King/California King : 108 x 102 inches (274 x 259 cm)

Comforter Sizes
Twin : 68 x 86 inches (173 x 218 cm)
Full/Queen : 86 x 86 inches (218 x 218 cm)
King/California King : 100 x 90 inches (254 x 229 cm)