How Big Is A Cal King Mattress?

A California King mattress, also known as a “Cal King,” measures 72 inches in width by 84 inches in length. This makes it a particularly suitable option for taller individuals or for those who simply enjoy having a bit more legroom when they sleep. Despite the name, the California King is not just popular in California but is widely available and favored by people across the United States who are looking for a spacious and comfortable sleeping surface.

Understanding California King Mattress Dimensions

The size of a California King mattress can best be understood by comparing it with other popular bed sizes. For instance, a standard King mattress, often referred to as an Eastern King, measures 76 inches by 80 inches, in contrast to the California King’s 72 inches by 84 inches. This makes the Cal King 4 inches narrower and 4 inches longer than a standard King mattress. The differences between these two sizes may seem slight, but they can be a determining factor when considering bedroom size and personal comfort preferences.

Moreover, compared to a Queen-size mattress, which measures 60 inches by 80 inches, a California King provides a significant increase in personal space for couples, and an additional 4 inches of length which could be crucial for taller sleepers.

The Benefits of a California King Mattress

Ample Space for Couples

Having a mattress that provides adequate space to both partners is essential for a comfortable night’s sleep. The California King, with its expansive surface area, allows couples to have enough personal space while still sharing a bed. This can reduce disturbances from movements such as tossing and turning, leading to better quality sleep.

Extra Length for Tall Individuals

For individuals over six feet tall, fitting comfortably on a standard mattress can be a challenge. Feet dangling over the edge can be a common and frustrating problem which the California King size solves with its additional length.

Large Bedroom Accommodation

The luxurious size of the California King mattress is also an aesthetic fit for larger bedrooms. It can serve as a statement piece of furniture, and provide a balanced look to a room that might otherwise dwarf a smaller bed.

Variety of Bedding Options

Despite being less common than its standard King counterpart, the California King size still enjoys a wide array of bedding options. Many retailers offer sheets, duvets, mattress protectors, and other bedding components made specifically for this size, ensuring that you can dress it according to your own style and comfort preferences.

Drawbacks of a California King Mattress

While there are significant benefits to owning a California King mattress, there are also potential drawbacks to consider, one of which includes the size of the mattress being a little too large for some spaces. It can be cumbersome to move and might not fit comfortably in smaller rooms, potentially overpowering the space and leaving little room for other furniture.

Another aspect to consider is the bedding cost. Because California King bedding is specialized, it can be pricier and slightly more difficult to find compared to standard King or Queen-size bedding.

Choosing the Right Mattress: Factors To Consider

Selecting the right mattress size is about more than just measuring the dimensions of your room. Here are some of the key factors to consider:

Room Dimensions

Before purchasing a California King mattress, it is essential to measure your bedroom to ensure a proper fit. There should be enough space around the bed to move comfortably and accommodate other furniture pieces such as nightstands and dressers.

Sleep Habits

Consider your sleep habits. If you’re someone who moves a lot in sleep, values personal space, or has a partner with similar sleeping behavior, a California King mattress could be an excellent investment for a restful night.


Always take your budget into account. A larger mattress means a higher price tag not just for the mattress itself but for the bedding and bed frame as well. Make sure the California King fits into your financial plan before making the jump.

Future Planning

Think about the future as well as the present. If you expect to move frequently, a Cal King mattress might not be the most practical choice due to its bulky size and difficulty to transport.

Personal Preference

Ultimately, personal preference should play a significant role in your decision. Prioritize what you value most in a bed and let that guide your purchase.

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Ensuring Your Bedding Fits

When shopping for bedding for a California King mattress, always check the labels for compatibility. Ensure that the dimensions closely match those of your mattress. Keep in mind that some bedding may shrink after washing, so consider sizing up or looking for pre-shrunk fabrics.

Finishing Thoughts

The California King mattress offers a distinctive blend of luxury and practicality, with ample space for couples and taller individuals to stretch out. Its dimensions, being 72 inches by 84 inches, make it an ideal choice for those requiring extra legroom or wanting to fill a large bedroom. Despite its potential drawbacks, such as higher costs and the cumbersome nature of moving the mattress, for many, the benefits of spaciousness and comfort outweigh these factors.

When considering upgrading to or purchasing a Cal King, assessing room size, sleep habits, budget, and personal preferences are crucial to ensuring that it’s the right fit for you. As with any significant purchase, thorough research and thoughtful consideration will guide you toward making the best decision for your sleep experience—and ultimately, for your quality of life.


  • Ashton Roberts

    I love learning and sharing everything about sleep. I am one of the energetic editors here at GoodSleepHub, where I talk about how to get a better night's sleep. When I'm not writing, I'm probably walking my dog Luna or trying out new sleeping gadgets. My goal is to help you sleep easier and better. Join me, and let's find simple ways to enjoy great sleep every night!

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