Baby Mattresses

Shop the Best Cot Mattresses in Australia – Safe, Firm & Breathable

At Bubs n Grubs, we know that choosing the right cot mattress is one of the most important decisions you’ll make for your baby’s sleep. That’s why we stock a carefully selected range of cot mattresses that meet or exceed Australian Safety Standard AS/NZS 8811.1 for firmness and are designed to provide outstanding breathability, comfort and support from birth.

 

Our range includes firm foam cot mattresses, innerspring cot mattresses, organic baby mattresses, hypoallergenic mattresses, non-toxic cot mattresses, and custom-size mattresses to suit a wide variety of cots and nurseries. Whether you’re buying your first baby mattress or replacing an older one, we’ll help you choose the safest option for your family.

 

We stock trusted brands including Babyhood and Grotime, with features such as breathable mattress cores, removable washable covers, waterproof layers, and premium materials designed to create a safe and comfortable sleep environment. Shop online with fast Australia-wide shipping or visit our Brisbane showroom for expert advice from our experienced team.

Why Parents Choose Our Cot Mattresses

Australian Safety Standard Cot Mattresses
Australian Safety Standard
Meets or exceeds AS/NZS 8811.1 firmness requirements.
Non-Toxic Baby Mattress
Non-Toxic & Hypoallergenic
Made with baby-safe materials that are gentle on delicate skin.
Breathable Cot Mattress
Breathable & Comfortable
Designed to improve airflow and help regulate your baby’s temperature.
Expert Cot Mattress Advice
Expert Advice
We’ll help you choose the right cot mattress for your cot and your baby.
Our deals for Baby Mattresses often change daily, so don’t wait too long - we only just updated them on 24 August 2026.
  • 4% Off! Babyhood Breathe Eze Cot Mattress 1200 X 600

    babyhood Breathe Eze Cot Mattress 1200 x 600

    0 No Rating Yet
    Original price was: $109.Current price is: $105.
    SAVE $4 Off RRP!
  • NEW Grotime Bamboonest Luxe Curved Mattress

    Grotime BambooNest Luxe Curved Mattress

    0 No Rating Yet
    Original price was: $229.Current price is: $218.
    SAVE $11 Off RRP!
  • NEW Grotime Bamboonest Luxe Mattress

    Grotime BambooNest Luxe Mattress

    0 No Rating Yet
    Original price was: $229.Current price is: $218.
    SAVE $11 Off RRP!
  • NEW Grotime Comfortnest Mattress

    Grotime ComfortNest Mattress

    0 No Rating Yet
    Original price was: $149.Current price is: $138.
    SAVE $11 Off RRP!
  • NEW Grotime M690s100 Cot Mattress

    Grotime M690S100 Cot Mattress (Breathe Easy Mattress)

    0 No Rating Yet
    Original price was: $199.Current price is: $188.
    SAVE $11 Off RRP!
  • Up to 44% Off! Babyrest Deluxe Innerspring Cot Mattress Inside

    Babyrest Deluxe Innerspring Cot Mattress

    Original price was: $229.Current price is: $128.
    SAVE Up to $101 Off RRP!
  • Up to 18% Off! Babyhood Full Vinyl Baby Cot Mattress

    Babyhood Full Vinyl Baby Cot Mattress

    $90 – $112
    SAVE Up to $21 Off RRP!
  • 26% Off! Bamboo Breathe Eze Innerspring Mattress 1200x600

    babyhood Bamboo Innerspring Breathe Eze Cot Mattress 1200×600

    0 No Rating Yet
    Original price was: $249.95.Current price is: $186.
    SAVE $63.95 Off RRP!
  • 25% Off! Bamboo Breathe Eze Innerspring Mattress 2023

    Babyhood Bamboo Innerspring Breathe Eze Cot Mattress 1295*690mm

    Original price was: $279.Current price is: $208.
    SAVE $71 Off RRP!
  • 5% Off! Babyhood Breathe Eze Fibre Cot Mattress

    Babyhood Breathe Eze Cot Mattress 1295mm x 690mm

    Original price was: $129.Current price is: $122.
    SAVE $7 Off RRP!
  • 15% Off! Babyhood Breathe Eze Fibre Cot Mattress

    Babyhood Breathe Eze Cot Mattress 1310mm x 750mm

    Original price was: $149.95.Current price is: $128.
    SAVE $21.95 Off RRP!
  • 15% Off! Babyhood Orthopedic Innerspring Mattress

    Babyhood Orthopaedic Innerspring Breathe Eze Cot Mattress

    Original price was: $219.95.Current price is: $188.
    SAVE $31.95 Off RRP!
  • Up to 11% Off! babyhood cradle mattress

    Baby Cradle Mattress

    Original price was: $64.95.Current price is: $58.
    SAVE Up to $6.95 Off RRP!
  • Up to 41% Off! Bassinet Mattress

    Bassinet Mattress

    Original price was: $64.95.Current price is: $38.
    SAVE Up to $26.95 Off RRP!

How to Choose the Right Cot Mattress

Choosing the right cot mattress is just as important as choosing the cot itself. A quality mattress should provide a firm, flat sleep surface, fit snugly inside the cot with no large gaps, and meet the requirements of Australian Safety Standard AS/NZS 8811.1. The right mattress helps create a safe, comfortable sleeping environment for your baby from the very first day.

Whether you’re looking for a foam cot mattress, an innerspring cot mattress, or a breathable baby mattress, it’s important to consider your baby’s comfort, your cot’s dimensions, and how easy the mattress is to keep clean. Many parents also choose removable washable covers and waterproof mattress protectors to help extend the life of their mattress.

FAQ’s From Customers In-Store

What size cot mattress do I need?

Most standard Australian cots require a mattress measuring approximately 130 x 69 cm, but it's always important to check your cot manufacturer's specifications. A cot mattress should fit snugly with no excessive gaps around the edges.

Should a cot mattress be firm or soft?

A firm, flat cot mattress is recommended for babies and is required under Australian safety standards. Firm mattresses provide better support and help create a safer sleep environment than soft mattresses.

What's the difference between a foam and innerspring cot mattress?

Foam cot mattresses are lightweight and affordable, while innerspring mattresses generally provide greater durability, improved airflow and long-term support. Both can be excellent choices when they meet Australian safety standards.

Should I use a waterproof mattress protector?

Yes. A waterproof mattress protector helps keep your cot mattress clean, protects it from spills and accidents, and can extend the life of your baby's mattress without affecting comfort.

When should I replace my baby's cot mattress?

Replace your cot mattress if it becomes damaged, sags, loses its firmness, or no longer fits the cot correctly. For hygiene and safety reasons, we also recommend avoiding older or second-hand mattresses unless you know their full history.

Still comparing cot mattresses?
Read our expert buying guide to learn about firmness, breathable materials, foam vs innerspring mattresses, Australian safety standards, and how to choose the best cot mattress for your baby.

Best Baby Mattresses – Complete Buying Guide