Kids Mattress

Choosing the Right Kids Mattress

Buying for a child is mostly a sizing and durability decision, with a sensible support level on top. It doesn't need to be complicated. Here's the honest version of what matters and what doesn't.

Size: single or king single

This is the main decision, and it's about how long you want the mattress to last as they grow:

• Single (about 92 × 188 cm): the standard choice for younger children and a toddler's first big-kid bed. Also the size most bunk beds take.
• King single (about 107 × 203 cm): noticeably longer and a little wider — better for taller children and teenagers, and it buys more years before they outgrow it.

If you're buying for a child who's growing fast, king single is often the more economical choice over time even though it costs a little more up front.

Support: medium-firm is the sensible default

For a growing child, a medium-firm feel is the usual recommendation — supportive enough to keep a young body well-supported, without being uncomfortably hard. Very soft mattresses generally aren't ideal for children, and very firm ones aren't necessary. If you want to look specifically at that feel, the medium firm range covers it across constructions; many kids mattresses at this size and price are pocket spring or value innerspring, which suit children well.

Durability: kids are hard on beds

Children jump, bounce and treat a bed as furniture and trampoline. A kids mattress earns its keep by holding up to that, which is why durability matters more here than premium comfort features they won't notice. The good news is a sensible, well-made kids mattress doesn't need to be expensive — this range starts at $89 for a single for exactly that reason.

Toddler's first big bed

Moving a toddler out of a cot usually means a single mattress, often low to the floor or in a low frame so it's easy and safe to climb in and out. The priorities are simple: the right size, supportive medium-firm feel, and a durable build — the same things that matter for older kids, just at the start of the journey.

When to replace a kids mattress

The honest, most common reason is simply that they've outgrown the size — feet near the end, or cramped on a single that suited them three years ago. Beyond that, replace it if it's visibly sagging or your child is consistently uncomfortable on it. There's no need to replace on a fixed schedule if it still fits and supports them well.

Shop by size

• SingleYounger kids, toddler first beds, and bunk beds. See the single range.
• King singleTaller kids and teens, and more years before they outgrow it. See the king single range.
• SupportMedium-firm is the sensible default for growing kids. See medium firm.

Why buy your kids mattress from A2Z

The A2Z Furniture is a family-run Australian business established in 2013. Kids are refreshingly honest about whether a bed feels right, so ask which of our five South-East Queensland showrooms (Rocklea, Virginia, Bundall, North Ipswich and Beenleigh) has the one you want on display. Pick-up is available seven days a week, plus delivery free within 10 km* of our Rocklea warehouse on eligible items when you pay outright (not pay later), ground floor only. Every mattress carries a manufacturer's warranty (the period varies by model — check the product page) — see our warranty policy — and you can spread the cost interest-free with Afterpay, Zip, Klarna, Latitude Interest Free and PayPal Pay in 4. Verified customer reviews are shown on each product to help you compare. Prefer to talk it through? Call our team on 1300 781 990.

Kids Mattress FAQs

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