The 30-second answer
- The common defaults: single 36 × 75", double 48 × 75", queen 60 × 78", king 72 × 78".
- Length is the trap, not width. Indian mattresses ship in 72", 75" and 78" lengths, and all three are common. Ordering the right width with the wrong length is the most avoidable mistake on this page.
- The label is not the size. "King" is sold at both 72" and 66" wide; "single" at 30", 36" and 42". Always buy by the numbers.
- Measure the frame's inner platform in centimetres — not the outer woodwork, and not the old mattress, which has spread with age.
- If you are 6 feet tall, 72" is too short. You want 75" or 78".
Once the size is fixed, the harder question is what goes inside it. That is the mattress buying guide — firmness, materials, certifications and warranties — or let the mattress finder ask you ten questions and rank real models against your answers.
The full Indian mattress size chart
Widths are reasonably settled in the Indian market; lengths are not. Read this chart as width × length, and treat every length column as a real option you have to choose between rather than a default you inherit.
| Name | Width | Width in cm | In feet | Who it suits |
|---|---|---|---|---|
| Diwan / narrow single | 30" | 76 cm | 2'6" | Diwan frames, guest seating, small children |
| Single | 36" | 91 cm | 3' | One sleeper — the standard single |
| Wide single / small double | 42" | 107 cm | 3'6" | One adult who moves a lot; teenagers |
| Double | 48" | 122 cm | 4' | One adult + one child; tight rooms |
| Queen | 60" | 152 cm | 5' | Couples — the Indian standard |
| Narrow king | 66" | 168 cm | 5'6" | Couples wanting more room than a queen, in a frame that will not take 72" |
| King | 72" | 183 cm | 6' | Couples + a child; large bedrooms |
| Length | In cm | In feet | Comfortable up to |
|---|---|---|---|
| 72" | 183 cm | 6' | About 5'6" — shorter adults and children |
| 75" | 191 cm | 6'3" | About 5'9" |
| 78" | 198 cm | 6'6" | About 6' and over |
The rule behind that last column: leave roughly 4–6 inches of mattress beyond the tallest sleeper's height, so heels and pillows are not fighting for the same space. It is why a 6-foot adult on a 72" mattress sleeps badly without ever quite working out why.
Sizes the way Indian shops say them
Carpenters, furniture shops and most family conversations use feet, not inches — "five by six", "six by six". That shorthand almost always means width × length in feet, and it is imprecise in one specific way: the second number is usually rounded, so "6" can mean a true 72" or a rounded-down 75".
| Said as | Inches | Centimetres | Usually called |
|---|---|---|---|
| 3 × 6 | 36 × 72" | 91 × 183 | Single |
| 3 × 6½ | 36 × 78" | 91 × 198 | Single, long |
| 4 × 6 | 48 × 72" | 122 × 183 | Double |
| 5 × 6 | 60 × 72" | 152 × 183 | Queen, short |
| 5 × 6½ | 60 × 78" | 152 × 198 | Queen — the common one |
| 6 × 6 | 72 × 72" | 183 × 183 | King, square |
| 6 × 6½ | 72 × 78" | 183 × 198 | King — the common one |
The one to watch is 6 × 6. A 72 × 72" mattress is genuinely square, and it is a real, widely stocked size — every one of the 38 models in our dataset offers it. If someone tells you a king is "six by six" and your frame is 78" long, you will be six inches short of the footboard.
Why the size names cannot be trusted
The Bureau of Indian Standards' bed-mattress standard, IS 13489, fixes dimensions only for institutional supply. For household mattresses it defers to the order — dimensions are, in effect, whatever the buyer and seller agree. Nothing obliges two brands to mean the same thing by "king", and they do not.
Counting the 605 size variants across the 38 models in our finder dataset, here is how much each label actually moves:
| Label | Widths sold under it | What that means for you |
|---|---|---|
| Single | 30", 36", 42" | A 40% spread. "Single" alone tells you almost nothing. |
| Double | 48" | The most consistent label in the market — but some brands market a 54" as "double" too. |
| Queen | 60" | Settled. If it says queen, expect 60" wide. |
| King | 66", 72" | A 6-inch spread — the difference between fitting your frame and not. |
Queen is the one label you can more or less take at face value. Single and king are the ones that need the numbers checked on the listing before you order — and on Amazon.in the exact dimensions are in the variant selector, not always in the title.
72, 75 or 78 inches: the length decision
This is the single most common ordering mistake, and it happens because length is presented as a footnote when it should be a first-class choice. In our dataset, the three lengths are stocked at almost identical rates — for queen, all 38 models offer 60 × 78", 37 offer 60 × 75" and 36 offer 60 × 72". No length is "the default"; you are picking one, whether or not you realise it.
How to get it right
- Measure the frame's internal length first, then buy the mattress that matches it — not the other way round.
- Then sanity-check against height. If the frame is 72" and someone sleeping on it is 5'10", the frame is the problem, not the mattress. Consider replacing the bed before you spend on a mattress that will never be long enough.
- Never split the difference. A 75" mattress in a 78" frame leaves a three-inch gap that collects everything and shifts every night; a 78" mattress in a 75" frame will dome in the middle and wear unevenly.
A tolerance of about half an inch
Mattresses are cut with some tolerance, and covers stretch. A mattress within roughly half an inch of the frame's internal dimension will settle in fine. Beyond that, you are buying a problem: too small and it slides, too large and it bows. If your frame falls between standard sizes, that is a custom-size conversation — see custom sizes below.
Measuring your frame in five minutes
Every number on this page is useless next to one measurement you take yourself. Do this before you shortlist anything.
- Strip the bed and take the old mattress off entirely.
- Measure the inner platform — the recess the mattress sits in — left to right and head to foot. Measure the inside faces of the frame, not the outer woodwork. Use centimetres; the numbers are finer and you will make fewer rounding errors.
- Measure at both ends. Carpenter-made frames are frequently a centimetre or two out of square. Take the smaller of the two readings.
- Measure the recess depth on a box or storage bed. A 10-inch mattress in a deep-walled box can sit high enough to bury the frame's edge, or leave the sidewall pressing into the mattress.
- Convert and compare. Divide centimetres by 2.54 for inches, then match against the size chart.
Do not measure the old mattress. Foam and coir spread outward over years of use — an eight-year-old mattress can read an inch wider than the day it arrived. Copy that number onto an order form and the replacement will not fit the frame it is meant for.
Thickness: what is sold, and what you need
Thickness is the third dimension and it is sold hardest, because it is the easiest number to inflate. It is not a quality measure — a 6-inch mattress with a dense support core will outlast a 10-inch one padded out with soft filler. But there are floors.
| Thickness | Share of variants | Suits |
|---|---|---|
| 4" | 11% | Diwans, folding and guest use, toddler beds. Too thin for an adult nightly. |
| 5" | 11% | Light single sleepers on a flat, fully supported base. |
| 6" | 50% | The Indian default. Fine for one adult of average weight on a solid base. |
| 8" | 25% | Couples, heavier sleepers, anyone with back pain. Treat as the practical minimum for a shared bed. |
| 10"+ | 3% | Premium hybrids and pillow-tops. Check your fitted sheet depth and frame recess before ordering. |
Half the market sits at 6 inches because that is what the price ladder rewards, not because it is the right answer for two adults. If a bed is shared, budget for 8 inches — the extra depth is mostly support core, which is the layer that governs how long the mattress holds its shape.
Check the sheets. Standard Indian fitted sheets are cut for roughly 6–8 inches. A 10-inch mattress will pop the corners off anything shallower, so factor a set of deep-pocket sheets into the cost.
Which size for your household
Your bed frame has usually settled this already: if it takes a queen, you are buying a queen. This table is for the cases where the size is genuinely still open — you are buying the bed and the mattress together, or working out whether the bed you have is still big enough to keep.
| Who is sleeping | Buy | Note |
|---|---|---|
| One adult | 36 × 75" | Go 42" wide if you change position a lot through the night. |
| One adult, tall | 36 × 78" | Length matters more than width here. |
| Couple | 60 × 78" | Queen is the Indian standard for a reason. A 48" double gives each person 24" — narrower than a single. |
| Couple, one restless | 72 × 78" | Width is the cheapest fix for motion transfer, before you spend on materials. |
| Couple + young child | 72 × 78" | King, or a queen plus a separate single — co-sleeping on a queen squeezes both adults. |
| Elderly sleeper | 36 × 75" | Prioritise a bed height that allows sitting with feet flat on the floor over mattress size. |
When the table and your frame disagree
If the size you need is bigger than the frame will take, the bed is the purchase, not the mattress — and it is worth being blunt about that before you spend. A queen mattress on a double frame overhangs six inches a side with nothing underneath, and the unsupported edges collapse quickly. Going the other way and buying the double because that is what the frame takes leaves two adults 24 inches each, narrower than a single bed.
The in-between case is the 66" narrow king: if your frame measures 66" rather than 72", that is a real, widely stocked size rather than a compromise — buy to the 66" measurement instead of forcing a full king in.
What each size step actually costs
Size is priced by surface area, but not linearly — and the steps are not evenly spaced. Taking the median price at each size across our dataset and indexing everything to a single:
| Size | Median | vs single | Step up from previous |
|---|---|---|---|
| Single | ₹8,199 | 1.00× | — |
| Double | ₹10,882 | 1.33× | +33% |
| Queen | ₹13,699 | 1.67× | +26% |
| King | ₹15,470 | 1.89× | +13% |
Two things fall out of that last column, and both are actionable:
- Queen to king is the cheapest step on the ladder — about 13% at the median for 20% more sleeping surface. If the frame and room take a king, the size upgrade is better value than most material upgrades at the same money.
- Double is the weakest value — a third more than a single for a bed that gives two adults 24 inches each. If you are buying for a couple and the frame allows it, the queen is worth the further 26%.
Prices across the dataset run from about ₹3,900 for an entry single to ₹55,900 for a premium king, so size is a much smaller lever on the final bill than material is. What goes inside the mattress is covered in the buying guide's budget section; the scored picks at each size are in best mattresses in India.
Custom sizes, returns and the staircase
Custom sizes
Several Indian brands will cut to a non-standard size, which is genuinely useful for inherited and carpenter-made frames. Read the policy first: custom sizes are commonly excluded from trial returns, refunds and cancellations at the brands that offer them, because the mattress cannot be resold. You are giving up the safety net that makes buying a mattress online reasonable — worth it for a frame that fits nothing else, not worth it to save a trip to a different brand.
Getting it into the room
A boxed mattress arrives rolled and compressed, and navigates staircases and lifts easily in that state. Once opened it never re-compresses. From that point it is a rigid 6-foot object, and a king is a genuinely awkward one.
Before ordering a king, walk the route: the lift's internal diagonal, the stairwell's turns and landings, and the doorway into the bedroom. Do the same arithmetic if there is any chance of a move or a return pickup. This is the failure mode people discover on delivery day, when the return window has an unboxed mattress standing in the corridor.
Sizing up the fitted accessories
Protectors and fitted sheets are sold against the same unreliable size names as the mattresses. Buy them to your measured dimensions plus the mattress depth, not to the word "queen" — and put a protector on from the first night, since stains void both trial refunds and warranties at almost every brand.
Frequently Asked Questions
Is queen size 5×6 or 6×6 in India?
Queen is 5 feet wide — 60 inches. "5×6" means 60 × 72" and "5×6½" means 60 × 78", which is the more common queen. "6×6" is a king: 72 × 72", a genuinely square mattress. If a shop offers you a "6×6 queen", the numbers and the label disagree — trust the numbers.
What are king size mattress dimensions in India?
Most commonly 72 × 78" (183 × 198 cm), or 6 × 6½ feet. But "king" is also sold at 66" wide (168 cm) as a narrow king, and 72 × 72" is widely stocked — every model in our dataset offers it. Check the listed width and length rather than the label.
What is the difference between a double and a queen mattress?
A double is 48" wide and a queen is 60" — one foot of difference, all of it width. For two adults that is the difference between 24 inches each (narrower than a single bed) and 30 inches each. Lengths are identical across both, so the choice is purely about how much shoulder room two people get.
What is a queen size mattress in cm?
152 cm wide. Length depends on which one you buy: 183 cm (72"), 191 cm (75") or 198 cm (78"). The 152 × 198 cm queen is the most widely stocked in India.
What mattress length do I need if I am 6 feet tall?
78 inches (198 cm). A 72" mattress is exactly 6 feet, leaving nothing over, and a 75" leaves three inches — enough to feel cramped once a pillow is on the bed. The working rule is 4–6 inches of mattress beyond the tallest sleeper's height.
Is a 6-inch mattress thick enough?
For one adult of average weight on a solid, fully supported base, yes — six inches is the Indian default and half the variants in our dataset are cut to it. For two adults, a heavier sleeper, or anyone dealing with back pain, treat 8 inches as the practical minimum. Depth is not quality on its own, though: a dense support core at 6 inches beats a soft-filled 10.
Can I put a queen mattress on a double bed frame?
No. A queen is 12 inches wider than a double, so it would overhang six inches on each side with no support underneath. The unsupported edges collapse under load and the mattress wears unevenly and quickly — and edge sag is not covered as a warranty defect when it is caused by the wrong base.
What size is a diwan mattress?
Usually 30 inches wide (76 cm) — narrower than a single — most often at 72" or 78" long. A wider 48" class is also marketed as a diwan by some brands, so measure the frame rather than ordering to the word.
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