If you’re shopping for a new bed, you might be wondering what’s the size of a California king mattress. It’s a common question, as this specific size offers a unique set of benefits that can be perfect for certain sleepers and bedrooms.
This guide will give you all the details. We’ll cover the exact dimensions, compare it to other sizes, and help you decide if it’s the right fit for your home.
What’s The Size Of A California King Mattress
The standard dimensions for a California king mattress are 72 inches wide by 84 inches long. In simpler terms, that’s 6 feet across and 7 feet long.
This makes it the longest standard mattress size available in the United States. It provides more length than a traditional king, but is actually 4 inches narrower.
Comparing California King to Other Mattress Sizes
To really understand the California king, it’s best to see it side-by-side with other common sizes. This comparison will show you where it shines and where other options might be better.
California King vs. Standard King (Eastern King)
A standard king mattress measures 76 inches wide by 80 inches long. Here’s the key difference:
- Width: Standard king is 4 inches wider (76″ vs. 72″). This gives each sleeper 38 inches of space, compared to 36 inches on a Cal king.
- Length: California king is 4 inches longer (84″ vs. 80″). This is the major advantage for tall people.
So, you choose: more width for spreading out, or more length for stretching out.
California King vs. Queen
A queen mattress is 60 inches wide by 80 inches long. The California king is significantly larger in both directions, offering 12 extra inches of width and 4 extra inches of length. It’s a major upgrade in sleeping space.
California King vs. Twin XL
This is an interesting comparison. Two Twin XL mattresses (each 38″ x 80″) placed side-by-side create a standard king size (76″ x 80″). However, two Twin XLs do not make a California king. You would need a special “California King Split” set, which are two mattresses each measuring 36″ x 84″.
Who is a California King Mattress Best For?
This mattress size isn’t for everyone, but it can be a game-changer for the right person or family. Consider it if:
- You or your sleep partner are very tall (over 6’4″). The extra length prevents feet from hanging off the edge.
- You have a narrow but long bedroom layout. The shape can fit better in certain rooms.
- You sleep with pets or children who like to stretch out vertically at the foot of the bed.
- You prioritize length over width. Some couples prefer less width if it means no cramped toes.
Important Considerations Before You Buy
Choosing a California king is a big decision. Here are some practical things to think about before making the purchase.
Bedroom Dimensions and Layout
Your room needs to be able to handle it. A good rule is to have at least 2 feet of walking space on three sides of the bed. Measure your room carefully. Don’t forget to account for nightstands, dressers, and door swings. A California king can dominate a smaller room.
Sheets, Bedding, and Accessories
Finding bedding for a California king can be slightly more challenging and sometimes more expensive than for standard kings. Not all stores carry full selections in-store, but online options are plentiful. Always double-check that you’re buying “California King” sheets, not “Standard King.”
Bed Frame and Headboard
You will need a bed frame designed specifically for a California king. A standard king frame will not work. The same goes for headboards and adjustable bases. Make sure any existing furniture you plan to use is compatible with the 72″ x 84″ dimensions.
Moving and Access
This is a very long and bulky mattress. Measure your hallways, staircases, and door frames before it arrives. Getting a California king up a tight staircase or around a sharp corner can be a difficult challenge.
Step-by-Step Guide to Choosing Your Mattress Size
If you’re still unsure, follow these steps to make a confident choice.
- Measure Your Bedroom: Use a tape measure to get the full length and width. Draw a simple layout, marking windows, doors, and vents.
- Measure the Sleepers: Have everyone who will use the bed lay down with their arms above there head. Add at least 6-10 inches to the height of the tallest person for a comfortable length.
- Test Space in Store: If possible, visit a showroom. Lie down on both a standard king and a California king with your partner to feel the difference in width vs. length.
- Check Your Current Setup: Decide if you’re replacing everything (frame, bedding) or just the mattress. This impacts cost and convenience.
- Consider the Future: Think about your next home. Will this mattress fit easily elsewhere, or are you committing to a specific room shape?
Common Myths About California King Mattresses
Let’s clear up some misinformation you might here online or from friends.
- Myth: It’s the largest size available. (Reality: The Alaskan King and other custom sizes are larger, but they are non-standard.)
- Myth: All king-size bedding fits it. (Reality: This is the most common mistake. The sizes are not interchangeable.)
- Myth: It’s much more expensive than a standard king. (Reality: The price difference is usually minimal for the mattress itself; bedding can vary.)
- Myth: It’s only for celebrities and huge homes. (Reality: It’s a practical choice for tall individuals in any size home, if the room layout works.)
Care and Maintenance for Your Mattress
Protecting your investment is key, especially with a larger mattress. Here’s how to keep it in great shape.
- Use a mattress protector from day one. Spills are harder to manage on a big surface.
- Rotate the mattress head-to-foot every 3-6 months. This prevents uneven wear. Some models only need rotating, not flipping.
- Ensure proper support. Use a sturdy frame with a sufficient number of center support legs to prevent sagging.
- Clean it regularly. Vacuum the surface with an upholstery attachment to remove dust and allergens.
FAQ Section
Is a California King bigger than a king?
It depends on how you define “bigger.” A California king is longer (84″ vs. 80″) but narrower (72″ vs. 76″) than a standard Eastern king. So, it has more total length but less total width.
What are the dimensions of a Cal king bed in feet?
A California king bed is 6 feet wide by 7 feet long. This makes it easy to visualize in terms of room space.
How do I know if a California King will fit in my room?
Measure your room’s length and width. Place the bed’s dimensions (72″x84″) in your planned spot, leaving at least 24 inches on three sides for walkways. Don’t forget to account for other furniture.
Can I use a standard king frame for a California king mattress?
No, you cannot. A standard king frame is too short and too wide. You must use a frame specifically built for a California king’s 72″ x 84″ dimensions to ensure proper support and safety.
Are California King sheets easy to find?
Yes, they are widely available, though you may find a slightly smaller selection in physical stores compared to queen or standard king. Online retailers offer the broadest choice of styles and materials for Cal king bedding.
Is a California King good for couples?
It can be excellent for couples where one or both partners are very tall. However, if you are both average height and prefer more width to spread out, a standard king offers more personal sleeping width per person.
What is the price difference for a California King?
The mattress price is usually comparable to a standard king. The main cost differences come from bedding, which can sometimes cost a bit more, and the need for a specific bed frame if you don’t already have one.
Final Thoughts on Choosing Your Size
Knowing the answer to “what’s the size of a California king mattress” is just the first step. The real decision comes from matching those dimensions to your life—your height, your room, and your sleeping habits.
For tall individuals, the extra legroom is invaluable. For others, the cozier width might not be worth it. Take your time, measure twice, and think about your long-term needs. A good mattress is a big purchase, and getting the size right is the most important part of ensuring you get the great sleep you deserve for years to come.