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Mattress Topper Sizes (Dimensions and Chart)

mattress topper size on a bed

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Whether you’re getting a mattress topper to alter the feel of your bed or just to add a bit more support, choosing the right size is crucial. Adding a wrong size topper might only cover a part of your mattress, or it might be too big and hang over the side of the bed. In this article, we help you avoid this by telling you all about the different mattress topper sizes, both standard and non-standard.


Standard mattress topper sizes chart

Mattress Topper SizesDimensions
Twin38″ x 75″
Twin XL38″ x 80″
Full54″ x 75″
Queen60″ x 80″
King 76″ x 80″
California King72″ x 84″

Standard US mattress sizes and mattress topper sizes are one and the same, as it should be.

The most important thing that you need to do before getting a mattress topper is measure the dimensions of your mattress. Different topper sizes will also be well-suited for various individuals and bedroom spaces.

I’ll just get straight to it and tell you about the pros and cons of each mattress topper size below.

Twin

At 38″ x 75″, the twin is the smallest and least expensive of all mattress toppers.

A twin size topper is great for your kid’s bedroom and it’s also appropriate for smaller spaces. Since twin is also the most popular bunk bed size, twin mattress toppers are a good option for those who are sleeping on uncomfortable bunk bed mattresses.

As for its cons, twin mattress toppers do not provide enough space for an adult to sleep comfortably. Taller individuals should also opt for a longer size to get the legroom that they need.

Twin XL

At 38″ x 80″, a twin XL mattress topper offers more benefits without taking up extra space.

Like a twin topper, a twin XL topper is suitable for kids and growing teenagers. If you’re a college student, most college dorms use twin XL mattresses and you can definitely get a mattress topper to improve your sleep.

Again, the downsides of a twin XL are similar to a twin. It doesn’t provide enough space for adults to sprawl out and switch positions.

Full

Moving on to slightly larger sizes, a full size mattress topper’s dimensions are 54″ x 75″.

A full mattress topper is fitting for those who sleep alone and want to get a good amount of sleeping space. Despite being bigger than a twin, a full mattress topper is still suitable for small to medium size bedrooms. Ghostbed mattress toppers are our favorite full-size brand.

Although full mattresses were used for couples in the 1900s, we would not recommend a full mattress topper for couples today. At 54 inches width, each person will only get 27 inches of sleeping space which is even less than a twin mattress. So if you sleep with a partner, it’s better to get a mattress topper that’s queen-sized or bigger.

Queen

At 60″ x 80″, queen is the most sought-after of all mattress and mattress topper sizes.

Whether you sleep alone or with a partner, a queen size mattress topper is a great option. It offers great value and it doesn’t take up as much space as a king size mattress. Parachute mattress toppers are our favorite queen-sized brand.

The drawbacks of queen mattress toppers are that they aren’t big enough for couples to co-sleep with their children, and they might be too short for individuals over 6’5”. If you and/or your partner are really tall, we recommend getting a longer size topper like a California king.

King

King size is the largest standard mattress topper size at 76″ x 80″.

By largest I mean the widest. A king mattress topper is going to offer couples the most space to roll around and switch sleeping positions. It can also be a suitable option for parents who co-sleep with not more than one child. Zoey mattress toppers are our top-rated king-sized brand.

A king size mattress topper’s cons are it might be a bit costly for some, and it won’t have enough space for parents with multiple children. Also, taller couples might not get the legroom that they need on a king size beds.

California King

Now for the longest mattress topper size, the California king measures 72″ x 84″.

It’s a luxury option that can accommodate most couples including those who are taller than average. But, California king mattress toppers won’t have enough space for parents who co-sleep with their children.

If you sleep with several children, we recommend getting an oversized mattress topper such as a Texas king or Alaskan king.


Non-standard sizes for mattress pads and toppers

If there are non-standard mattress sizes, there are also mattress toppers that fit these unconventional sizes. The following are the non-standard mattress pad and topper sizes that are available today.

Full XL

A full XL mattress topper measures 54″ x 80″.

It provides the same benefits as a full mattress topper, but it’s five inches longer which makes it an excellent choice for taller individuals. If you sleep alone and you need extra legroom, get a full XL mattress topper.

The downside is that most of these non-standard sizes are not that common. Although there are some brands in the online mattress space that offer these sizes.

Olympic Queen

At 66″ x 80″, an Olympic Queen mattress topper is six inches wider than a regular queen.

Couples who want extra space without getting an overly large or expensive mattress usually opt for a Olympic Queen. Its cons are that its very rare and it only adds extra width but not height.

Taller sleeper or couples should get a longer mattress topper to avoid hanging their feet off the side of the bed.

California Queen

A California Queen mattress topper measures 60″ x 84″.

It keeps the width but it’s four inches longer than a Queen mattress topper. This size is still great for couples but it’s designed to offer extra legroom for taller sleepers.

The only downside here is its width which is the same as a regular queen. It might not provide the added space that some couples might be looking for.

Texas King

At 80″ x 98″, a Texas King belongs to the oversized mattress topper category.

You should only use this mattress topper if your existing mattress is a Texas king. This size is best suited for families with 1 or 2 children. Although it’s only four inches wider than a king size mattress, a Texas king is 98 inches long which means it can accommodate any individual regardless of their height.

Alaskan King

Known as the undisputed king of square-shaped mattress toppers, an Alaskan King measures 108″ x 108″.

You should use this mattress topper size if you co-sleep with 2 or 3 children. It will provide with you all the space you need because it’s the second widest oversized mattress and it’s THE longest mattress you can find today.

Alaskan king mattress toppers are quite popular, but their one caveat is their steep price point which might not be viable for some people.

Wyoming King

Next, is another square-shaped mattress topper, the Wyoming King measures 84″ x 84″.

It has the same length as a Cal king but is 12 inches longer. A Wyoming king mattress topper is excellent for couples and those who co-sleep with two children. However, extra tall sleepers should look for a longer mattress like a Texas king to be comfortable.

Family Bed

Now for the biggest mattress and topper size in existence, the Family Bed measures 120″ x 80″.

It also has a larger version called the Family Bed XL which is a whopping 144 inches wide and 80 inches long. Though it’s not the longest, it’s by far the widest out of all standard and oversized mattress toppers.

Assuming you have a Family Bed, a Family Bed mattress topper will have enough space to fit in an entire family, hence its name. Its downsides are that its very expensive, and it can only fit in a humongous bedroom.

RV mattress topper sizes

Last but not least in our list of non-standard topper sizes are RV mattress topper sizes.

Ranging from 28″ x 75″ to 72″ x 80″, RV mattress toppers come in all sorts of customized and sometimes regular sizes. If you have an RV or camper, measure your mattress first to get the right mattress topper dimensions. Mattress pads add extra comfort and support for your RV mattress.


How to choose a mattress topper size

Choosing a mattress topper size is fairly simple. Just take note of the following factors and you’ll be good to go:

  • Mattress size
  • Body weight
  • Price

Mattress size

The first and most important thing you have to is determine the size of your mattress.

Measure its height and width and check the table above for its corresponding size, then select a mattress topper with the same size.

Body weight

Next, consider your body weight and your partner’s weight (for couples).

If you weigh 230 lbs. or less, you should choose a mattress topper that’s at least 2 inches thick for extra cushioning. But if you’re a heavier individual, we recommend getting a mattress topper that’s 3 inches thick for additional support.

Price

Lastly, check a mattress topper’s price to make sure it fits your budget.

The price of a topper will depend on the materials used in its construction. For example, a memory foam mattress topper is always going to be more affordable than a natural latex topper. Different mattress topper types come at different price points.


FAQs

Will a Twin XL mattress topper fit a full mattress?

No, a twin XL mattress topper will be to small for a full mattress. You should get a full mattress topper for your full bed.

Should I increase the size of my sheets if I have a mattress topper?

Yes, you should increase the size of your sheets depending on the thickness of the mattress topper. Measure the total height of your mattress with the topper on it and get a fitted sheet that’s one inch deeper.

How many inches height does a mattress topper add?

The added height to your bed depends on the thickness of the mattress topper. Mattress topper thickness usually ranges from 1 to 3 inches, with some models even reaching 4 inches.

Can mattress toppers be cut to a custom size?

Yes, but only polyfoam and memory foam mattress toppers can be cut to custom size.


Conclusion

Making sure to get the right size is imperative when buying a mattress pad or topper. In this article, we gave you all the info on both standard and non-standard mattress topper sizes. Also, don’t forget to consider the price of a mattress topper and if its thick enough to support your body weight.

If you already got a mattress topper but you’re looking for an extra layer of protection against spills and stains, you can get a mattress protector to complete your bed setup.


Next step: Read our Dormeo mattress topper review. Dormeo is one of the most popular brands available, and for good reason. We like it because it’s comfortable, supportive, and available in many different sizes. If you aren’t sure which brand to go with, choose Dormeo.


Sleepline Team

Psst… the sleep review industry is full of liars, sharks, and thieves. It’s a modern-day version of getting ripped off at your local mattress store. So, why should you trust us?