Width x LengthStandard Size
38" x 74.5"Twin
38" x 79.5"Twin XL
53" x 74.5"Full
60" x 79.5"Queen
76" x 79.5"King
72" x 83.5"California King

Mattress Sizes 

Learn which standard mattress size is right for you. Mattress heights vary by product. See specifications for height details. Learn more, or compare mattress sizes using our size chart.

Twin, or "single", mattresses are ideal for kids´ bedrooms, or rooms with bunk beds or day beds.

Full, or "double", mattresses are great for your child´s room since the extra width compared to a twin mattress means your child will have more room to stretch as he/she grows.

A Serta queen mattress measures approximately 60" x 79.5". These measurements can vary by +/- 1/2". Size availability varies by product and retailer. Mattress heights vary by product, so please see information on specific model height.

King mattresses are a great solution for the master bedroom, as the extra room can create a more luxurious sleep experience. Select Serta mattress models are available in California King as well.