Mattress Size Chart

Which mattress size is best?

What mattress size is best for meTwin Size Mattress Twin XL Size Mattress Full Size Mattress Queen Size Mattress King Size Mattress California King Size Mattress

Mattress Sizes

One of the most important aspects of a better night’s sleep is ensuring you have enough room to fully relax and sleep. A common mistake in purchasing a bed is buying one that is too small. Before you start shopping, ask yourself if you are satisfied with the amount of sleep space in your current bed and review our mattress size charts below to ensure you purchase the right bed size.

Mattress Size Chart and Dimensions


Most Common Mattress Sizes

Twin Size Mattress

Width: 39 in x  Length: 74 in

Twin Extra Long Size Mattress

Width: 39 in x  Length: 80 in

Full Size Mattress

Width: 54 in x  Length: 74 in

Queen Size Mattress

Width: 60 in x  Length: 80 in

King Size Mattress

Width: 76 in x  Length: 80 in

California King Size Mattress

Width: 72 in x  Length: 84 in


Twin Size Mattress Twin XL Size Mattress Full Size Mattress Queen Size Mattress King Size Mattress California King Size Mattress

The best bed size really depends on who will be sleeping in it. If only one person will be sleeping in the bed, then a twin, twin XL or full size mattress will work. If two people will be sleeping in the bed, a queen, king or California king bed will give both sleepers ample space, ensuring you receive a good night’s sleep.

Twin Bed Dimensions

A twin size mattress is the smallest mattress available and is best suited for one child or one adult. The dimensions of a twin size mattress are approximately 39 inches wide by 74 inches long. Taller adults may be more comfortably sleeping on a twin XL bed size.

Twin XL Bed Dimensions

Popular in many college dorm rooms, the twin XL (extra-long) mattress is approximately 6 inches longer than a twin mattress. This makes it perfect for taller adults. Twin XL beds are approximately 39 inches wide by 80 inches long.

Full Bed Dimensions

The full size mattress, also known as a double mattress, is approximately 16 inches wider than a twin mattress, but does not provide enough added room for two people to sleep comfortably. It may be too short for adults taller than 5’5”. Full beds are 54 inches wide by 74 inches tall. A full size mattress is a great choice for growing children, plus the added space allows for parents to lie down while tucking their kids in for the night.

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Queen Bed Dimensions

Queen size mattresses provide more width than a full size mattress, which adds additional comfort for two sleepers. Queen mattresses are the most popular mattress size today. With the dimensions of 60 inches wide by 80 inches long, the queen size mattress is a good choice guest rooms or couples that like to sleep closer together.

King Bed Dimensions

King size beds are best for couples that want the maximum amount of sleeping space. King size mattress dimensions are approximately 76 inches wide by 80 inches long, making a king mattress almost the same size as two twin XL beds. This bed size is also preferable if you have children, dogs or cats that will be sharing your bed. Since king mattresses are much longer and wider, the box springs are split, making it easier to navigate around stairs and tight corners.

Fun Fact: If you purchase a “split king” bed with an adjustable base, you are actually ordering two twin XL beds.

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California King Bed Dimensions

At 72 inches wide by 84 inches long, the California king mattress is perfect for those who want more length in the bed. The California king is 4 inches narrower than a king size mattress, but it is 4 inches longer. This bed size still gives each sleeper 6 inches more sleeping width than a queen size bed. The additional length also makes the California king mattress size a good choice for adjustable beds, providing ample length even with the head and/or foot elevated.

Do you have children or animals sharing your bed? If so, consider a king or California king bed. The larger bed size will give everyone plenty of room to sleep comfortable all night long.

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