Mattress Protector Sizes and Dimensions Guide

6 min read
6 min read

Mattress protectors may look very similar to a fitted sheet, but they act as a protective layer between you and the mattress. These protectors are extremely useful as they bring forth many advantages where they guard the mattress against bacteria, dust, moisture, and unexpected spills. 

 

When shopping for mattress protectors, you will notice that they come in similar sizes as the standard mattresses. However, it is imperative to understand the mattress protector sizes correctly so it seamlessly fits your bedding. Read ahead to know all about the mattress protector sizes.

Mattress Protector Sizes Chart

Let’s take a look at all the mattress protector sizes suitable for standard mattress sizes. 

Mattress Protector Size
Dimensions (inches)
Dimensions (cm)
Twin
38 x 74
96.5 x 190.5
Twin XL
38 x 80
96.5 x 203.2
Full (Double)
54 x 75
137.1 x 190.5
Queen
60 x 80
152.4 x 203.2
King
76 x 80
193 x 203.2
California King
72 x 84
182.9 x 213.4

Twin Size Mattress Protector

The dimensions of a twin mattress protector size are 38 inches wide by 74 inches long. So, if you are someone who owns a twin-size mattress, you need a twin mattress protector. Twin mattresses are great for children and teens. In fact, they are great for young ones who are moving from a crib to a bed. The twin beds can be accommodated in a smaller bedroom. The minimum room dimensions they need include 7 by 9 feet.

Twin XL Size Mattress Protector

The dimensions of a twin XL mattress protector size are 38 inches wide by 80 inches long. As the name suggests, this is an XL version of the twin and boasts an extra 6 inches in length. These mattresses are an excellent option for college students and single adults because of the extra length. 

This mattress is also perfect for taller teens. Another advantage of opting for a Twin XL mattress is that in the future, you can combine it with another Twin XL to convert it into a king-size bed. If that’s the case, you can use a king mattress protector size for two twin XLs as it will also help keep it together.

Full/Double Size Mattress Protector

A full mattress protector size is 54 inches wide by 75 inches long. You will have to use the exact dimensions when it comes to a mattress protector because it needs to perfectly fit the mattress well in order to perform optimally. A full mattress protector size can be used for a double mattress. 

 

Just like twin XL, you also find double XL mattresses in the market. However, you may not be able to easily find their mattress protector size because a double XL is a rare size, and finding a mattress protector size for the same is quite difficult. A full XL mattress measures 54 by 80 inches and the full XL mattress protector size is the same.

Queen Size Mattress Protector

The queen size mattress protectors are 60 inches wide by 80 inches long. A queen bed is an optimal size for couples as it gives you enough space to sleep peacefully. Since it is a large bed, you can also use it for your guest bedroom. Today, the queen is one of the most popular mattress sizes out there, hence, you will find mattress protector sizes for the same easily. Using a mattress protector for your queen mattress will help enhance its lifeline as it will protect it from spills and stains.

King Size Mattress Protector

The King mattress protector size is 76 inches wide by 80 inches long. It is the largest standard mattress size out there. It is perfect for couples who want to co-sleep with their kids or their furry babies. A king-size mattress is great for a master bedroom, which measures at least 12 by 10 feet. Today, split king mattresses are also extremely popular.

As the name suggests, a split king is a mattress that is split in the middle. This is beneficial for couples who have different mattress preferences. For instance, if you enjoy a firmer mattress while your partner prefers a softer one, a split king will fulfill both of your needs. One split is equal to a twin XL. If you opt for a split king, then you will need two different mattress protectors for the same. Since half of a king mattress and a twin XL measure the same, you can use two twin XL mattress protectors for a split king. 

California King Size Mattress Protector

For a California king mattress, you will have to use a California mattress protector size, which is 72 inches wide by 84 inches long. Now, a Cal King is the longest standard mattress size, which is 4 inches more than a standard king-size mattress. However, it is not the largest mattress size as it is narrower than a king-size mattress. Therefore, choose the right mattress protector size here. 

A Cal King is an excellent option for adults who are more than 6 feet tall. Just like a king, you also find Split Cal King mattresses, although they are quite rare. If you are using a split Cal king mattress, you will need different mattress protectors for each side and the dimensions include 36 by 84 inches.

Mattress Protector’s Pocket Depth

When we talk about a mattress protector’s pocket depth, it talks about the thickness of your mattress protector and how much it can stretch. This is an important factor to consider, especially if you have a thick mattress between 9-12 inches and use a mattress topper too. Because you don’t want an extremely sung mattress protector or stretch to its limit. 

If the mattress protector is too small or fits tightly, it can pop off at night, whilst you are enjoying a deep slumber. And it will also lead to wear and tear very soon. So, your mattress protector must be at least 1 inch thicker than the mattress. For instance, if the thickness of the mattress is 13 inches, your mattress protector’s thickness must be 14 inches. Before you purchase your mattress protector, always check if it is the right mattress protector size.

Now you are familiar with all the standard mattress protector sizes and how you can choose one for your mattress. Remember, a mattress protector is great as it keeps your mattress fresh and helps keep away any stains. But, for the mattress protector to function properly, the right mattress protector size is essential. 

Imagine, you are enjoying a glass of wine on your bed and enjoying a lovely movie. You place the glass on the mattress for a second, but it spills. Now, you will have to blot the wine from the mattress, clean it, dry it and your enjoyable evening goes down the drain. So, you can definitely use a mattress without a protector, but having one in place keeps your mattress safe. Now, in the same scenario, if you had the mattress protector on, all you had to do is machine wash your mattress protector and the sheets while you put a fresh pair on the mattress and you are good to go. However, always bring home the right mattress protector size so it works well. Only the right mattress protector size will be able to keep your mattress safe.

A mattress protector is similar to a fitted bed sheet that protects the mattress from any spills and stains. But a mattress topper is used to add some extra cushion to the already present mattress. You can use a mattress topper and a mattress protector together. Here, the mattress protector size must be at least one inch thicker than the mattress and the topper. So, choose the mattress protector size correctly.

You must wash your mattress protector once every month. However, if you are someone who sweats a lot or suffers from allergies, you can wash it more than once in a month. That being said, if there are any spills or other accidents, you must wash your mattress protector immediately. Usually, the mattress protectors can be washed in the machine. But always read the care label to check for instructions to see if it says otherwise.

You should replace your mattress protector every 1 to 2 years.

It depends on the breathability of the material of the mattress protector.

Regular mattress protectors may not protect you from bed bugs as they are not designed to cover every inch of the mattress.

No. A mattress pad is like a mattress topper and gives your mattress extra cushion or padding while mattress protectors have waterproof surfaces that can protect your mattress from any spills, dust, bacteria, and more.

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Authored by healh experts and journalists

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Meet Our Review Board

Each week our team researches, writes and collaborates with industry leaders to bring you simple easy-to-read sleep information.

David Bridge

Sleep Coach

Siddhesh Tiwatne

Sleep Coach

Authored by health experts and journalists

Fact checked and science-backed

Medically reviewed by physicians

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Meet Our Review Board

Each week our team researches, writes and collaborates with industry leaders to bring you simple easy-to-read sleep information.

David Bridge

Sleep Coach

Siddhesh Tiwatne

Sleep Coach

Authored by health experts and journalists

Fact checked and science-backed

Medically reviewed by physicians

Meet Our Review Board

Each week our team researches, writes and collaborates with industry leaders to bring you simple easy-to-read sleep information.

David Bridge

Sleep Coach

Siddhesh Tiwatne

Sleep Coach

Authored by health experts and journalists

Fact checked and science-backed

Medically reviewed by physicians