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Article: What's a Split King Sheet?

whats a split king sheet

What's a Split King Sheet?

Sometimes it can be hard to keep up with all the different size sheets out there, and you may be wondering, “What’s a Split King sheet?”. How is it different from a regular king sheet? Is it like a California King sheet?

In fact, a Split King sheet is designed for a Split King bed and is a unique kind of sheet. We’ll explain everything you need to know about Split King sheets, including how to choose the perfect sheet. 

What this article covers:

What Is a Split King Bed?

A Split King bed is a bed that consists of two Twin XL mattresses next to one another on one King-sized bed base. A King mattress is 80” long and 76” wide. A Twin XL mattress is 80” long and 38” wide, meaning that two of them next to each other give you the same dimensions as a King mattress. 

One of the key features of a Split King is that the two Twin XL mattresses aren’t connected. This is what makes the Split King so popular among couples. We love how a Split King allows people to choose the perfect mattress for them. 

what is a split king sheet

For example, you could have a Split King bed where one mattress is soft and the other is firm. Each person gets the mattress that suits them, and no one has to compromise. 

What Are Split King Sheets?

Split King sheets are designed to fit on a Split King mattress rather than a regular King mattress or a California King. Each mattress has different dimensions, and it’s important to know the dimensions of a king sheet - 80” by 76”. That’s why, for example, the answer to “do cal king sheets fit king?” is no because California king sheet dimensions are different, and the answer to “can a king sheet fit a queen bed?” is also no for the same reason. 

So what do split king sheets look like

Types of Split King Sheets

Even within Split King sheets, there are different types to consider when choosing the perfect one for you.

Sheet Material

Many cheap sheets are made out of polyester blends, which can be scratchy and less breathable than cotton. Our findings show that if you’re looking for a quality sheet, you should opt for a 100% cotton sheet or one made from bamboo. 


There are two main weaves used in making sheets, and they feel quite different. Percale sheets have a tighter weave, and they tend to be crisper and more breathable. Sateen sheets have a looser weave and a very silky feel. They’re also more resistant to wrinkles. 

define split king sheet

For example, if you’re looking for a purple sheet set, you can choose which weave you prefer. Both percale and sateen sheets have their advantages, such as the fact that percale is better for keeping cool, while sateen keeps you warmer in the cold months. 

Thread Count

One of the most important things to consider when buying a sheet is the thread count, which measures how many threads there are in a square inch of fabric. Higher thread counts are associated with better sheets, but different thread counts also have very different feels, so it is a matter of preference. 

For example, 300 thread count sheets from good quality cotton will be lightweight, crisp, and cool while still being soft to the touch. 500 thread count sheets will be very soft and silky but still quite lightweight. The ultimate luxury is 1000 thread count sheets. They’re rich and plush, but a little heavier. 

What's the Difference Between a Split King Sheet Set and a King Sheet Set?

A King sheet set will have a King size fitted sheet and a King-size flat sheet. On the other hand, a Split King sheet set will have two Twin XL fitted sheets for the separate parts of the mattress and then a King size flat sheet to go over the entire bed. 

split king sheet meaning

This is not the same as the difference between King and California King sheets. You need to understand what size a California King is - 84” long and 72” wide. So if you’re wondering if Cali King sheets fit a King bed, they won’t because of the different widths. 

 explanation of split king sheet

Similarly, if you’re wondering “Will a king sheet fit a California king?”, neither a split king nor a regular king sheet can cover the distance. 

Why Are Split King Beds and Sheets Growing in Popularity?

Perfect For Couples With Different Sleep Styles

Split King beds and sheets are an amazing solution for couples who have different sleep styles and mattress preferences. No longer will you have to argue about which mattress to choose and sacrifice your comfort for your partner’s.

Resolves Common Sleep Problems

Getting a Split King bed reduces many common sleep issues, like uncomfortable mattresses and not having enough space in the bed. And getting Split King sheets means that you will finally have fitted sheets that stay in place

Adjustable Comfort

While the most obvious advantage of a Split King bed is having varying levels of firmness in the mattresses, there’s also the fact that you can have the mattresses at different elevations, especially if your bed is adjustable. In that case, you’d need to look for the best sheets for split king adjustable bed

split king sheet definition

Can I Use Regular Sheets on a Split King Bed?

You can’t just use any sheet on a Split King, and we recommend buying a Split King sheet set for the best result. However, if you want to buy individual sheets, you could buy two Twin XL fitted sheets and one King-size flat sheet. This could be an option if you and your partner want different thread counts on your sheets. 

Best Split King Sheets

When it comes to the best Split King sheets, nothing beats California Design Den’s Split King Sheet sets. We offer an unparalleled combination of high quality at an affordable price, unlike other companies that charge hundreds of dollars for quality sheets.

understanding split king sheets

With Califonia Design Den, you can choose the color, the thread count, the material, and the weave of the sheets to find your absolutely perfect sheets. Our mission is to provide everyone at any price point with the best sleep of their lives by making our luxurious sheets affordable and accessible. 


If you sleep with a partner, we highly recommend thinking about a Split King bed and then making sure that you get the right sheets. 

Having the wrong size sheets can cause a great deal of irritation, so choose one designed for your exact mattress.

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