Cot sheet sizes in Australia: the complete guide
Standard cot, compact cot, co-sleeper or bassinet - four sizes cover almost every Australian cot, and they are easy to mix up. Measure your mattress, match it below, and buy the sheet that actually fits.
Which cot sheet size do I need?
Two ways to get your answer. Tap the cot you own, or put in the two numbers off your tape measure.
Tap the one that matches what you have. We will show you the sheet size that fits it.
Measure the mattress itself, not the cot frame. Centimetres, rounded to the nearest one. Order does not matter - we work it out either way.
Not sure how to measure? The step-by-step is just below the size chart.
Every cot and bed sheet size in Australia
These are the nine sizes Organic Peach makes, and the mattress each one is cut to fit. All measurements are length x width x depth in centimetres. The four cot sizes are the top four rows.
| Size | Mattress it fits | What it is for | Shop |
|---|---|---|---|
| Small Bassinet | 81 x 41 x 12 cm | Pram bassinets, Moses baskets, the SNOO | Bassinet sheets |
| Co-sleeper | 85 x 51 x 19 cm | Most co-sleepers and bedside cribs, bassinet mattresses, change mats | Co-sleeper sheets |
| Compact / Mini Cot | 120 x 62 x 22 cm | Travel cots, portacots and most daycare cots | Compact cot sheets |
| Standard Cot | 132 x 71 x 22 cm | Australian and US standard cot mattresses. The size most parents need. | Standard cot sheets |
| Single | 188 x 92 x 40 cm | The first big bed after the cot. Also most toddler beds. | Single sheets |
| King Single | 203 x 107 x 40 cm | Older kids and teenagers | King single sheets |
| Double | 190 x 137 x 40 cm | Guest rooms and co-sleeping families | Double sheets |
| Queen | 203 x 152 x 45 cm | The most common adult bed in Australia | Queen sheets |
| King | 203 x 182 x 50 cm | Australian king mattresses | Waterproof bedding |
The short answer for most people: if you have a normal Australian cot, you need Standard Cot, and your mattress should measure about 132 x 71cm. If you are buying for a travel cot or a mini cot, you need Compact Cot at about 120 x 62cm.
How to measure a cot mattress in 30 seconds
- Take the mattress out, or at least strip it bare. Measuring over an old sheet or a protector adds a centimetre or two and that is enough to send you to the wrong size.
- Measure the mattress, never the cot frame. Cot frames are 5 to 10cm bigger than the mattress inside them. This is the single most common reason people order the wrong cot sheet size.
- A - Length. Head to foot, along the longest edge, in centimetres.
- B - Width. Across the shortest edge, at the middle rather than the corner.
- C - Depth. Stand the tape against the side of the mattress and measure top to bottom. Most Australian cot mattresses are 10 to 12cm; ours are cut to fit up to 22cm so foam, spring and dual-firmness mattresses all work.
- Round to the nearest centimetre and put it in the finder above. You do not need to be exact. Fitted sheets are cut with give, so anything within a couple of centimetres of a listed size is your size.
What your cot is called, and what size that actually means
Retailers use different names for the same mattress and the same name for different mattresses. This is the translation.
UK and European cot beds are not Australian standard cots. The common European cot bed mattress is about 140 x 70cm, which is 8cm longer than an Australian standard cot. If you have imported a cot or bought one from a European brand, measure it before you order anything - an Australian standard cot sheet will be short on it, and no amount of stretch fixes 8cm.
The same goes the other way. If a listing quotes inches rather than centimetres, convert it and check the number against the chart above rather than trusting the name on the box.
Know your size? Go straight to it
Every size we make, smallest to largest, with the mattress it fits on the tile.
Waterproof fitted sheets in every Australian size
One sheet that protects the mattress and feels like normal cotton bedding. Sold in every size in the chart above.
Four fit problems, and what each one is telling you
Once you know your numbers, four things still trip people up. Here is what each one actually means.
The sheet is a struggle to get on
That is usually correct, not wrong. A cot sheet is meant to go on tight. Deep elasticated corners and a firm stretch are what stop the sheet coming loose overnight, which is exactly what safe sleep guidance asks of cot bedding. A sheet you can slip on with one hand is a sheet that can come off with one kick.
A corner keeps popping off
Almost always a depth problem rather than a length problem. Measure C on your mattress. If it is deeper than the sheet is cut for, the elastic runs out before it reaches under the mattress. If the depth is fine, check you have not bought the next size down - a compact cot sheet on a standard cot mattress will hold three corners and lose the fourth every time.
The sheet wrinkles or bags in the middle
The opposite problem: the sheet is cut for a bigger mattress than you have. A standard cot sheet on a compact cot mattress will look made but ruck up as soon as the baby moves. Loose fabric in a cot is the thing to avoid, so size down rather than live with it.
Do cot sheets shrink?
Cotton relaxes slightly over the first few washes, which is normal and is allowed for in how ours are cut. What causes real shrinkage is heat - a hot wash and a hot dryer. Wash warm or cold and tumble low or line dry and the fit you had on night one is the fit you keep. The full routine is in the care guide.
Send us your three measurements and we will tell you which one to buy, or tell you honestly if neither fits. Get in touch - it takes us a minute and saves you a return.
A size chart is only useful if the sheet is cut to it
Every size on this page is a real pattern, tested against Australian mattresses.
Cot sheet size questions
What size is a standard cot sheet in Australia?
An Australian standard cot sheet fits a mattress of roughly 132 x 71cm, with depth up to 22cm. That is the size most Australian cots use, and it is the same as a US standard crib. Shop it in standard cot.
What size is a standard cot mattress in Australia?
About 132cm long by 71cm wide. Depth varies far more than length or width: foam cot mattresses are often 10 to 12cm, while spring and dual-firmness mattresses can reach 20cm. Our cot sheets are cut to fit up to 22cm deep, so all of those work.
How do I measure my cot mattress?
Strip the mattress bare, then measure three numbers in centimetres: length head to foot, width across the middle, and depth down the side. Measure the mattress, not the cot frame - frames are 5 to 10cm larger and that is the most common reason people order the wrong size. Then put the numbers into the size finder at the top of this page.
Is a cot bed the same size as a cot?
In Australia, usually yes while it is still a cot - about 132 x 71cm - and then it converts to a single at about 188 x 92cm. The exception is UK and European cot beds, which are commonly 140 x 70cm. That is 8cm longer than an Australian standard cot and an Australian cot sheet will not fit it properly, so measure before you order.
Will a cot sheet fit a travel cot or a mini cot?
No - a travel cot mattress is much smaller. You need Compact Cot, which fits about 120 x 62 x 22cm and covers travel cots, portacots and most daycare cots. A standard cot sheet on a travel cot will bag and ruck up.
What size sheet fits a bassinet, Moses basket or SNOO?
Small Bassinet, which fits about 81 x 41 x 12cm and covers pram bassinets, Moses baskets and the SNOO. If yours is a bedside co-sleeper rather than a bassinet, you want Co-sleeper at about 85 x 51 x 19cm instead.
My cot mattress is deeper than usual. Will the sheet still fit?
Our cot sheets are cut for mattresses up to 22cm deep, which covers foam, spring and dual-firmness cot mattresses. If yours is deeper than 22cm, measure it and check with us first rather than ordering and hoping - a sheet that only just reaches is the sheet that pops a corner.
Do cot sheets shrink in the wash?
Cotton relaxes a little over the first few washes and ours are cut with that allowance. Real shrinkage comes from heat, so wash warm or cold, skip the fabric softener, and tumble dry low or line dry in the shade. The care guide has the full routine.
What size comes after a cot?
Single, at about 188 x 92cm. Most Australian toddler beds take a single mattress, though a few take a cot mattress, so measure before you buy. When you get there, single sheets are the same 2-in-1 waterproof build - which is handy timing, because single beds and night toilet training tend to arrive together.
My mattress is between two sizes. What should I do?
Size down rather than up. A slightly snug sheet grips; a slightly large one bags in the middle and loose fabric is the thing to avoid in a cot. If you are genuinely unsure, send us your three measurements and we will tell you which one to buy, or tell you honestly if neither fits.
Got your measurements? Get the sheet that fits them.
Every size on this page is a waterproof fitted sheet and a mattress protector in one. Organic cotton on top, hidden protection underneath.
