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A full XL is 54 by 80 inches. A queen is 60 by 80. Six inches of width is the entire decision, and it matters far more than most size charts let on.
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These two sizes are the same length and differ by six inches of width. That sounds trivial written down. It is not. Six inches is the difference between two adults having 30 inches each and having 27 inches each, and 27 inches is narrower than a standard crib mattress is long. Whether that matters to you is the whole question.
| Full XL | Queen | |
|---|---|---|
| Width | 54 in (4 ft 6 in) | 60 in (5 ft) |
| Length | 80 in (6 ft 8 in) | 80 in (6 ft 8 in) |
| Surface area | 4,320 sq in | 4,800 sq in |
| Width per sleeper (two adults) | 27 in | 30 in |
| Minimum room size (comfortable) | About 9 ft by 10 ft | About 10 ft by 10 ft |
| Bedding availability | Limited, often special order | Universal |
Both sizes are 80 inches long, which is five inches longer than a standard full. That extra length is the reason full XL exists at all: it accommodates sleepers up to roughly 6 ft 4 in without the width of a queen.
Full XL is a specialist size, and it solves three specific problems well.
A tall single sleeper in a narrow room. This is the core use case. If you are over six feet and your bedroom cannot take a 60 inch bed with walkways on both sides, full XL gives you the length without the width. A standard full would leave your feet hanging off.
College and dormitory setups. Many dorms are built around extra-long beds, and full XL is the upgrade from the twin XL that is standard in student housing. If you are buying for a student who is moving into an apartment, check what the previous furniture was sized for before assuming.
Split king configurations. This one surprises people. Two full XL mattresses side by side make a 108 inch wide bed, which is wider than a standard king. Two twin XL mattresses make a 76 inch king. Full XL is occasionally used to build oversized split setups on dual adjustable bases, though this is a niche arrangement and needs a custom frame.
Queen is the default American bed size, and defaults exist for a reason. It is the smallest size that two adults can share long term without one of them quietly resenting it. It fits comfortably in a room of about 10 by 10 feet with room to walk on both sides. And it has by far the deepest ecosystem of frames, foundations, sheets, protectors and headboards, which affects both price and choice.
If two people will sleep on this bed most nights, or if one person sleeps with a dog or a child who wanders in, queen is the answer. Our full vs queen comparison covers the same ground for standard full, which is 54 by 75.
This deserves its own section because it catches people out repeatedly. Full XL sheets are a genuinely limited category. Big-box stores stock queen bedding by the aisle and full XL by the shelf, if at all, and you will usually be ordering online.
Standard full sheets do not reliably fit a full XL: the width is identical but the fitted sheet is five inches too short in length, and whether it stretches over the corners depends on the pocket depth and how much give the fabric has. Deep-pocket full sheets sometimes work on a thin full XL mattress. Standard full sheets on a thick full XL mattress will pop off in the night. It is not worth gambling on. Buy sheets labelled full XL. Our bed sheet size guide has the full dimension breakdown.
Comforters and duvets are more forgiving, because they hang loose. A full or full-queen comforter generally works fine on a full XL.
Measure the room first. Put painter's tape on the floor at 54 by 80 and again at 60 by 80, and walk around both. You need at least 24 inches of clear walkway on each side you use, and more than that if a door or closet swings into the space. Our guide to measuring your room walks through it.
Count the sleepers, honestly. Not who sleeps there tonight, but who will sleep there in three years. Buying a full XL because you currently live alone is the most common regret in this category, because the bedding and frame are harder to resell and harder to replace.
Check what will hold it. Full XL frames and foundations are less common than queen. Confirm you can source a base before you commit to the mattress, particularly if you want an adjustable base.
Weigh the total cost. A queen mattress often costs slightly more than a full XL, but queen bedding is cheaper and more available, and queen frames are competitive because everyone makes them. Over the life of the bed the difference narrows considerably.
Buy full XL if you are one tall person in a small room and you know what you are getting into on the bedding front. Buy queen in essentially every other situation, and especially if two adults will share it. Browse queen mattresses or full size mattresses to see what each size costs in practice.
No. They share the same 80 inch length, but a full XL is 54 inches wide and a queen is 60 inches. That six inch difference is significant for two sleepers and irrelevant for one. Frames, foundations and fitted sheets are not interchangeable between the two.
54 inches wide by 80 inches long, which is 4 ft 6 in by 6 ft 8 in. It is the same width as a standard full and five inches longer, and the same length as a queen, king and California king.
Not reliably. The width matches but the length is five inches short, so a standard full fitted sheet will strain at the corners and often pull loose overnight. Deep-pocket full sheets occasionally work on a thin full XL mattress, but sheets labelled full XL are the only dependable option. Flat sheets and comforters are more forgiving.
No, and this is a common mix-up. A twin XL is 38 by 80 inches and a full is 54 by 75. They differ in both dimensions. Two twin XL mattresses side by side make a king, not a full. See our twin XL size guide for the details.
Online is usually the answer, since most physical stores do not stock the size. Search specifically for full XL or full extra long rather than assuming a full-queen label will cover it. Buy two sets at once, because restocking that exact size later is more of a chore than it sounds.
It can, but each sleeper gets 27 inches, which is about the width of a crib mattress. Couples who sleep close, or who only share the bed occasionally, manage fine. Couples who both move around at night usually find it tight within a few months. If two adults will use it nightly, go queen.
Some manufacturers make them, but the selection is much narrower than for twin XL, queen and split king. If an adjustable base is part of the plan, confirm availability in full XL before buying the mattress, or choose a queen and keep your options open.
Six inches is hard to picture and easy to feel. Lie down on both, ideally next to the person you share a bed with, and the answer becomes obvious in about a minute. All five of our Los Angeles showrooms have both sizes on the floor. Take our sleep quiz if you would rather narrow the firmness down first, and read our full XL size guide or complete mattress size guide for the rest of the lineup. Same-day delivery covers much of LA, and every mattress comes with our free 120-night comfort guarantee.
Start with a mattress type that suits how you sleep, then compare the feel in person.
Prices for Queen · Choose options for other sizes
Est. $124.84/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $749.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $158.17/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $949.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $146.50/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $879.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $91.63/month for 24 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 24 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 24-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $2,199.00 for one selected item by 24 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $92.42/month for 12 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 12 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 12-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $1,109.00 for one selected item by 12 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
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