It’s fun to think about decorating the nursery and choosing cute outfits for your little one to come. But what about the mattress? Choosing a cot mattress is a big deal (especially when they can spend up to 16 hours a day sleeping), but it’s so often overlooked when planning the nursery.
How to Choose the Best Cot Mattress
1. Safety Comes First (Always)
- Look for mattresses that meet recognised safety standards (all ours do)
- It is also recommended that a new baby has a new mattress.
2. Firm Is Best for Babies
Unlike what you may choose for yourself, firm is exactly what you want for a baby.
- A firm surface supports your baby’s developing spine.
- It also helps keep airways clear during sleep, reducing the risk of suffocation and Sudden Infant Death Syndrome (SIDS).
3. Choose the Right Size
- Cot sizes vary - always buy the recommended size mattress for your cot.
- You need a snug fit – any gaps at the ends and sides should be less than 20mm with the mattress centred in the cot. Larger gaps could pose an entrapment hazard.
4. Look for Breathable Materials
Babies can’t regulate their body temperature well, so airflow matters.
- Breathable cores and covers help with temperature regulation.
- Natural fibres or well-ventilated foam can help reduce overheating. Cooler sleep = safer and more comfortable sleep.
5. Hypoallergenic and Non-Toxic Materials
Babies are sensitive, so what’s inside the mattress matters.
- Look for hypoallergenic materials and low-tox or certified-safe foams.
6. Think About Longevity
Some cot mattresses are designed to last from newborn through toddler years.
- Dual-sided mattresses (firmer infant side, slightly softer toddler side) can be a smart investment.
- A durable mattress holds its shape and support over time.
What are the options?
Baby First Deluxe Innerspring Cot Mattress
This firm innerspring cot mattress will provide your child with a cozy and comfortable sleep. Includes a washable cover, making cleaning up any accidents a breeze.
Babyrest ComfiCore Cot Mattress
The solid foam core of this mattress is engineered to provide the right amount of support & comfort for your little one. It has ventilation channels for airflow, providing temperature regulation, breathability and freshness
- 70% Lighter than innerspring, the ComfiCore™ makes changing sheets quick and easy
Babyrest DuoCore Bamboo Cot Mattress
The DuoCore™ features unique dual-sided technology. With both a baby and a toddler side - the foam core is engineered to provide the right amount of support at every stage.
- Reinforced edges that support your baby’s safety and development as they pull up, sit, and explore
- The ventilated core is CO2 rebreathing certified, meaning that it’s been tested to reduce the risk of CO2 rebreathing
- The ultra-soft bamboo cover is removable and machine washable
- 70% Lighter than innerspring, the DuoCore™ makes changing sheets quick and easy.
Growbright Airnest Cot Mattress
Made with a revolutionary airnest core and a washable cover, this mattress is 100% washable from surface to core, designed to give your baby the safest, cleanest, and most comfortable sleep possible while giving you total peace of mind.
- The ultra breathable airnest technology helps regulate baby’s temperature and reduces the risk of airway obstruction if your baby rolls over during sleep
- Both the removable one-piece mattress core and spill resistant cover can be easily washed and dried at home, making a 100% washable mattress that reduces bacteria, mould, and allergen buildup
- The airnest core is hypoallergenic and made from food-grade polypropylene with no chemical-based foams or adhesives
- As all parts of the mattress are washable, it’s reusable for a second child without worry. When your little ones have grown out of it for good, the airnest core is 100% recyclable, meaning no foam or springs go into landfill at the end of its life.
We also have some specialised mattresses for specific cots. Check out the:
Sleepi Mini Mattress for the Stokke Sleepi Mini V3
Sleepi Mattress for the Stokke Sleepi V3
Don’t Forget a Mattress Protector
You’ll want to protect your new mattress from all manner of baby spills and nappy leakage. Look for a machine washable, fitted mattress protector that’s waterproof, yet breathable.
It might not be the most exciting baby purchase, but a mattress is one of the most important. We know that there’s nothing better at the end of the day than a happy sleeping baby, and we're here to help you find the right option for you and your growing family. If you have any questions, don’t hesitate to reach out to us by email, over the phone, or by visiting us in person at our Newmarket or Christchurch stores. When your baby sleeps, so can you, so enjoy some well-earned rest with the knowledge that your baby is sleeping safe.






