The Ultimate Guide to Cot and Bassinet Sheet Sizes in Australia

Custom size baby sheets advice for sizing

Buying cot and bassinet sheets in Australia can be confusing. Unlike adult bedding, which usually comes in standard sizes, baby bedding varies dramatically depending on the brand and model of the cot or bassinet. Parents often purchase “standard” sheets only to find they don’t fit properly, leaving them frustrated and out of pocket. This guide will walk you through the most common sizes, explain why variation exists, and show you how custom size baby sheets can solve the problem once and for all.

Typical Cot Sizes in Australia

Australian cot mattresses come in a range of sizes.  Popular brands add to the complexity: Boori cots, for example, are known for their larger and deeper mattresses, while Stokke Sleepi cots are oval-shaped. Kaylula and Leander cots each use their own unique dimensions, which means that even if a sheet fits one brand, it may not fit another.

Bassinet Sizes: Even Less Standardised

If cot sizing seems complicated, bassinets are even more varied. Bassinet mattresses can be small and rectangular, large and oval, or designed in unique shapes depending on the brand. For parents, this means buying “one size fits all” sheets is a gamble. You may end up with fabric that’s too loose, too tight, or awkwardly bunched.

Why This Variation Exists

Manufacturers design their mattresses with different dimensions and shapes to make their cots and bassinets unique. While this can be a selling point for parents looking for something special, it creates an ongoing problem when it comes to bedding. There’s no industry-wide standard, which means parents are left trying to match sheets to their specific brand or model.

The Problem With “Standard” Sheets

Sheets labelled as “standard size” are usually cut to fit the most common cot mattress dimensions. But as we’ve seen, very few mattresses are truly “standard.” For deeper mattresses, these sheets may pop off the corners during the night. For oval or uniquely shaped bassinets, they may leave loose fabric that bunches dangerously. Parents end up wasting money on multiple sheet sets that never fit quite right.

Why Custom Size Baby Sheets Are the Best Solution

The easiest way to solve the problem is to order custom size baby sheets. By measuring your mattress (length, width, and depth) and providing these details, you can have sheets made to fit perfectly. Whether your cot is a large Boori, a sleek Leander, or an oval Stokke, custom sheets guarantee a snug, safe fit. For bassinets, custom sizing is even more valuable, as it ensures security and comfort without the hassle of constant adjustments.

FAQs Parents Ask About Sizes

What size sheets do I need for my cot? Measure your mattress directly rather than relying on generic brand information. Some cots have multiple models with slightly different dimensions.
Do bassinet sheets come in a standard size? No. Bassinet mattresses vary widely in length, width, and shape, so custom sizing is the safest option.
Is it worth investing in custom sheets? Yes. Instead of wasting money on poorly fitting store-bought options, you get bedding that fits properly from day one.
How many sheets should I buy? Three sets are recommended: one in use, one in the wash, and one spare.

Final Thoughts

Cot and bassinet sheet sizing in Australia is anything but straightforward. With so many variations between brands and models, relying on “standard” sheets is often a losing battle. By investing in custom size baby sheets, you can guarantee a snug fit, keep your baby safe, and enjoy peace of mind knowing your nursery bedding is tailored to your exact needs.

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