Pillow Sizes: A Guide for Every Type of Bed

February 22, 2021 | Casper Editorial Team
pillows with measuring tape pillows with measuring tape Pillow sizes with measuring tape

Getting that well-deserved beauty sleep is hard enough, but now you’re left figuring out what size pillows you need to complete your new sleep setup. Our guide to pillow sizes will help you find the perfect pillow so you can skip all the research and spend your time deciding on the perfect bed sheets to finish getting your bedroom sleep-ready.

Pillow Dimensions

Standard, super standard, queen, king, and body pillow sizes

From standard to king — you probably didn’t realize how many pillow sizes were out there until you started shopping. Each has unique dimensions and is best fit for specific mattress sizes and types of sleepers. So while you may be okay with going the simple route and sticking with a standard pillow size, there’s a chance it’s not the pillow that would be best for you. 

Standard Pillow Size

20 x 26 in | 51 x 66 cm

A standard pillow fits well on a twin or full-size mattress. With full mattresses being 53 inches (134.5 cm) wide, opting for two standard pillows would fill the width of the mattress. However, twin mattresses are much smaller and will only fit one standard pillow. 

Being one of the smallest sleeping pillows you’ll find, it takes three standard pillows to cover the span of a king-size mattress. Because of this, it’s not the best option for larger beds. 

Super Standard Pillow Size

20 x 28 in | 51 x 71 cm

Being two inches longer than its little brother, the standard, and two inches shorter than the queen, super standard pillows are the perfect in-between. 

Two super standard pillows are too long to fit across a full or full XL mattress but fit well on a queen. If you prefer only having or using one pillow, a super standard would work well on a twin or full-size mattress as well.

Queen Pillow Size

20 x 30 in | 51 x 76 cm

As the name suggests, queen pillows work well on queen mattresses. With a mattress width of 60 inches, two pillows fit perfectly. If you prefer a more full look on a twin, one queen pillow will do the trick. 

Queen pillows fit snug in a standard-size pillowcase, so no need to buy a different size for them unless you prefer a looser look. 

King Pillow Size

20 x 36 in | 51 x 92 cm

You’ll normally find king-size pillows on a king or California king mattress. While you could put a king-size pillow on a twin bed, there will only be about one inch of the mattress on each side of the pillow. If this is what you’re aiming for, or a king-size pillow is best for your sleep patterns, this would be a good pillow for you. 

Keep in mind that the size of this pillow doesn’t fit in a standard pillowcase. Be sure to purchase pillowcases that specifically say they fit king-size pillows. 

Body Pillow Size

20 x 54 in | 51 x 137 cm

Body pillows may not come to mind when thinking of other pillow sizes out there, but don’t count out using one regularly. With the longest length out of all the aforementioned sizes, they only fit across queen or king-size beds. 

different sized pillows stacked to see the size difference

Our Casper Pillows 

Each Casper pillow is designed with different sleepers in mind, resulting in unique features. Our Original Casper Pillow, Foam Pillow, and Down Pillow all come in either a mid loft or low loft height as well. 

  • Original Casper Pillow: The unique Original Casper Pillows come in a standard or king size and are built with pillow-in-pillow design which responds to your movements — while the down-alternative mimics the airy softness of traditional down. These pillows not only are machine-washable, but the clump-resistant fill brings your pillow back to life with one quick fluff. And did we mention the breathable weave that’s designed to keep you cool night after night? 
  • Foam Pillow: If you’re looking for a pillow designed to support the alignment of your head and neck, our standard or king size Foam Pillow might be a better option for you. Made with tiny perforations to keep you sleeping cool as well as a luxuriously squishy feel, you’ll stay comfortable all night long. 
  • Down Pillow: Our fluffiest pillow, the Down Pillow, is made with ethically-sourced down and is machine washable, making for a quick and easy refresh. This pillow also features our one-of-a-kind 5 chamber design for optimal support. The Down Pillow is available in a standard or king size as well. 

Why Pillow Loft Matters

The “loft” of a pillow refers to its height when laying flat. A pillow with a low loft is a thinner pillow, while a pillow with a high loft will be thicker. Depending on your normal sleeping position, you’ll want a specific loft in order to be most comfortable. 

For example, it’s best for stomach sleepers to have a low loft pillow to keep their spine as aligned as possible. Using a medium or high loft pillow may be uncomfortable and can cause aches and pains — while side or back sleepers may prefer to have such a loft to sleep on.

Pillows stacked on top of one another.

Other Types of Pillows

While standard, super standard, queen, king, and body pillows are among the most popular for sleeping, there are a few others that can be used for different occasions as well. 

  • Travel pillows: Perfect for long car drives or plane rides. With a typical size around 12 x 16 inches, travel or nap pillows are small enough to transport, but also give your head the support it needs. 
  • Throw pillows: These are typically only for show (rather than sleep), and make a room more comfortable or inviting. Throw pillows come in all different shapes and sizes. 
  • Euro pillows: A type of throw pillow that measures 26 x 26 inches. Like other throw pillows, they add to the visual appeal of a room. 
  • Pregnancy pillows: These come in a variety of lengths and shapes. From a simple wedge to a 10 x 10 foot C shape, these pillows are made with many needs in mind. 

How to Measure a Pillow

Measuring a pillow doesn’t seem to be a hard task, but when done incorrectly, you’ll get inaccurate measurements. Rather than using a soft, tailor’s measuring tape, use a firm, carpenter’s tape measure. Hold two corners of the pillow to the ground and measure from one end to the other. 

When measuring, make sure not to do so diagonally or from the center to any side of the pillow. You’ll also notice the pillow dimensions listed above are all whole numbers. It may take some rounding, but your measurements should be whole numbers as well.

We’re all different and therefore need different pillows. Now that you’ve read through our guide to pillow sizes, you know how to find the one that will be best for you and your needs. After picking out your perfect pillow, look through our sheet size guide to find the right size linens for your bed.