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Pillow sizes in the US follow a short list of names, and most makers stay close to the same nominal dimensions. Length is what changes from one size to the next. Width barely moves, and height is a separate question that the size name does not answer.
Which size you need comes down to your bed, how many pillows you stack and how much you move across the mattress at night. A wrong guess is mostly a cosmetic problem, with one exception: a pillow too long for its case bunches up and loses the shape you paid for.
The sizes
Common US pillow sizes in inches
These are the nominal sizes printed on most US labels. Treat each one as a name for a small range, not an exact measurement. Makers vary by an inch or two, and many measure the shell flat before it is filled, so a stuffed pillow comes up shorter on a tape than on its label.
| Size | Nominal size (inches) | Usual bed | How it is used |
|---|---|---|---|
| Standard | 20 x 26 | Twin, full | One per sleeper on a smaller bed |
| Super standard | 20 x 28 | Full, queen | Two inches longer than a standard, and fills a standard case more fully |
| Queen | 20 x 30 | Queen | Two side by side span the head of a queen bed |
| King | 20 x 36 | King, California king | Two side by side span the head of a king bed, or one stands upright as a backrest |
| Euro | 26 x 26 | Any | Square, usually in a sham against the headboard |
| Body | 20 x 54 | Any | A long pillow laid along the body or hugged, often by side sleepers |
Which bed
Matching pillow size to your bed
On a twin or full bed, one or two standard pillows sit with room to spare. A queen bed takes two queen pillows edge to edge, while two standards leave a strip of bare sheet at each side. Both work for sleeping. The difference is how the bed looks once it is made.
King beds take two king pillows or three standards in a row. Some people stack a standard on top of a king to sit up and read, which also raises the loft under your head if you fall asleep there. Our guide to loft by sleep position explains why a stack can tip a side sleeper's head too high.
Longer is not better for sleeping. A king pillow on a queen bed overhangs the edges, and two sleepers with king pillows on a queen end up sharing an overlap in the middle. The extra length earns its place if you roll from one end of the pillow to the other during the night.
Length and loft
Size and loft are separate numbers
A queen pillow is not taller than a standard one. It holds more fill only because the shell is longer, and that fill spreads along the extra length. Two sizes from the same line can therefore feel close in height under your head.
Product pages usually give length and width, and some add a height for the pillow at rest. That resting height says little about loft under load. With shredded foam and other adjustable fills, the shell sets a ceiling and the fill you leave inside decides the rest. That is why our adjustable pillow ranking lists the size of every option.
Pillowcases
How a pillowcase should fit
Pillowcases are cut larger than the pillows they hold, so the pillow slides in and keeps its corners. A standard case fits a standard pillow and, snugly, a super standard. Queen cases fit queen pillows, and king cases fit kings.
Trouble starts when the pillow is longer than the case. Force a king pillow into a standard case and it bunches at both ends, while a queen in a standard case loses its corners. A case far too long causes the opposite problem, with a loose flap at the open end and a pillow that drifts inside it. Lay the case on the pillow before you order a full set.
- Euro pillows go in euro shams, which usually open at the back and often have a flat fabric border.
- Body pillows need their own long cases, since nothing in a standard set will stretch that far.
- Protectors and allergen covers come in the same size names. Match the cover to the pillow, then put the pillowcase over the top.
Other shapes
Contour, wedge and other odd sizes
Contour pillows, the foam shapes with a raised roll under the neck, rarely follow the standard sizes. Most run shorter than a standard pillow, and many come with their own cases cut to the curve. Check the case before you plan to reuse the ones you have.
Wedges and reading pillows are measured by their footprint and the height of the back, so the bed-size names do not apply to them. For anything outside the six common sizes, go by the dimensions on the product page and ignore the name.
Travel and lumbar pillows are another case of names without a shared standard. Two pillows called travel size can differ by several inches, and their cases are seldom sold separately. If you want spare cases, look for a maker that lists the case dimensions, or plan to buy the pillow and its case together.
Packs
Pairs, sets and price per pillow
Many pillows sell in pairs and some in sets of four, often next to a single option. A pair is not always the better deal, so divide the price by the number of pillows before you compare. Every review on Loft & Fill shows the price per pillow for each size and pack, which puts a single and a pair on the same line.
Size changes the price per pillow too. A king usually costs more than a standard from the same line, since it holds more fill, so compare like with like. If you only want one king for reading and standards for sleeping, buying them separately can cost less than a matched set of kings.
Before you order
Measure the pillow you already have
A soft tape measure settles most questions. Lay the pillow you already like on a table and measure each side from seam to seam. For example, if yours reads 19 by 25 inches, you most likely own a standard that has settled with use, not an odd size.
Compare the size name with the dimensions on the product page, because the two do not always agree. A pillow sold as queen at 20 by 28 inches is closer to a super standard. When a maker gives only a name, assume the nominal size and allow an inch either way.
Questions
Questions buyers ask
What size is a standard pillow you'd buy in the US?
A standard pillow is 20 by 26 inches nominal. Makers vary by an inch or two, and a filled pillow often measures shorter than its label because the shell is measured flat.
Can you put a queen pillow in a standard pillowcase?
You can, but it will be tight. A queen is four inches longer than a standard, so the ends bunch and the pillow loses some of its shape. Move up to a queen or king case and it has room.
How many pillows do you need on a king bed?
Two king pillows or three standards cover the width. Euro and decorative pillows go against the headboard and come off before you sleep.
Should you give a baby a small pillow?
No. Pillows are for adults. The NIH Safe to Sleep campaign says a crib with nothing but a fitted sheet is the safest option. It counts pillows among the soft items that are dangerous in a baby's sleep area.
