Pyjamas vs. Pajamas: Is There Actually a Difference?

No — "pyjamas" and "pajamas" are the exact same garment, spelled differently depending on where you are. "Pajamas" is the standard American spelling; "pyjamas" is standard in British English, Canadian English, and most of the Commonwealth. Neither spelling refers to a different style, fabric, or fit. Here's where the split comes from and which one to use.

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Pyjamas vs. Pajamas: Which Spelling Is Used Where

• Pajamas — the US spelling, also common in the Philippines and a few other regions with American English influence.
• Pyjamas — standard in the UK, Ireland, Canada, Australia, New Zealand, India, and most Commonwealth English.

This is the same pattern as "color" versus "colour" or "realize" versus "realise" — a regional spelling convention, not a difference in the thing itself. If you're shopping on a site written in American English, expect "pajamas"; on a UK or Australian retailer, expect "pyjamas."

Where the Word Actually Comes From

Both spellings trace back to the same source: "pāy-jāma," a Hindi and Urdu word combining "pāy" (leg) and "jāma" (garment), originally describing loose, drawstring trousers worn in South Asia. British colonial traders and officials picked up the word and the garment in the 18th and 19th centuries and brought both back to Britain, where "pyjamas" became the standard spelling. The American spelling "pajamas" developed later as a simplified, more phonetic version.

So the fabric-and-drawstring loungewear most people picture today is a genuinely borrowed garment concept, not a British or American invention — the word's history predates both regional spellings by a long way.

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Does the Spelling Affect Anything Practical?

No — not the garment, the fit, or the fabric. The only place the spelling matters practically is search and writing: if you're shopping online and not finding what you want, try the other spelling, since some retailers and search filters treat them as distinct terms even though they describe the same item. Beyond that, it's purely a regional-English detail with zero bearing on quality or style.

Does Pronunciation Change Along With the Spelling?

Sometimes, though not as a strict rule tied to the spelling itself. Both words are commonly pronounced with either a short "a" ("pa-JAH-mas") or a long "a" ("pa-JAY-mas"), and both pronunciations show up across American, British, and Commonwealth English regardless of which spelling a speaker uses. In other words, spelling and pronunciation are two separate regional habits that don't map onto each other as cleanly as you'd expect — plenty of Americans say it the "British-sounding" way and vice versa.

A Quick Related Mix-Up: Pajamas vs. Sleepwear vs. Loungewear

While we're untangling terminology: "pajamas" specifically means a matching (or coordinated) top-and-bottom set traditionally worn to sleep. "Sleepwear" is the broader umbrella term that includes pajamas, nightgowns, and sleep shirts. "Loungewear" overlaps but leans more toward comfortable clothing meant for lounging around the house, not necessarily sleeping in — a category that blurs into pajamas more every year as the line between the two keeps softening.

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Shopping for a Set, Whichever Spelling You Use

Since the garment itself doesn't change based on spelling, the things actually worth comparing are fabric (cotton breathes better for warm sleepers, flannel runs warmer for cold ones), fit (relaxed versus fitted), and season. Our cotton pajama collection is a reasonable place to start regardless of which spelling brought you here, and our guide on how to choose a pajama set covers fabric and fit in more depth. If loungewear-that-doubles-as-sleepwear is more your style, the same collection covers both ends of that spectrum in one place, alongside our full bedding range if you're outfitting the whole bedroom at once.

Frequently Asked Questions

Is it correct to say pyjamas or pajamas?

Both are correct — the difference is entirely regional. "Pajamas" is standard American English; "pyjamas" is standard in British and Commonwealth English.

Where does the word "pajamas" come from?

From the Hindi/Urdu word "pāy-jāma," meaning leg garment, originally referring to loose drawstring trousers worn in South Asia before the term and garment were adopted into English.

Do British people ever say pajamas?

Occasionally in casual speech, but "pyjamas" remains the standard spelling in British writing, retail, and dictionaries.

Is pyjama singular or plural?

Like "pants" or "scissors," it's traditionally used in the plural form ("pyjamas" or "pajamas") even when referring to one set, since the garment consists of two pieces.

Is "pyjama" ever used as a singular noun?

Occasionally as a modifier — "pyjama party," "pyjama top" — but on its own, referring to the garment, it stays plural in both spellings.

The Bottom Line

Same garment, same fabric, same fit — "pyjamas" and "pajamas" just reflect which side of the regional-English divide you're writing from. Use whichever matches your audience, and don't let the spelling affect what you're actually shopping for.