Best baby mattress: 6 best cot bed mattresses for your newborn

On the hunt for a cot mattress that’ll help max your (and baby’s) chances of sleeping through? Look no further than these best baby mattresses

Safenights Luxury Pocket Spring Cot Mattress

If you're in the midst of designing a nursery, you're probably looking for somewhere for baby to sleep (or you should be...). Babies spend nearly half of their early months snoozing, which is also when they do all their best growing, including developing their brains and immune systems. So, the best baby cot bed mattress will play a huge part in giving your household the best chance of decent sleep.

If you're looking to find the best mattress for your needs, you'll find plenty of choice from our recommendations. For the best mattress for adults, don't miss our guide. And if you need more guidance, read our comprehensive feature on how to choose a mattress: it takes you through filling types and your preferred sleeping position to help you make an informed choice. 

For all our mattress reviews, buyer's guides and advice pieces, check out our mattress hub page. But if you're after a mattress deal, we've got all the bargains.

What to consider when buying the best baby mattress

Support

You’ll need one that supports baby’s spine properly – experts say the firmer the better in the first six months. 

Breathability

Check the fillings of the cot mattress you're buying – breathability to keep baby cool in bed is a must-have.

Practicality

Also look for practical features like removable covers that can be washed at a germ-busting 60 degrees because there will be spillages from one end of your baby or the other (possibly both), sorry.

THE BEST BABY COT BED MATTRESSES

eve baby cot mattress

1. Best baby mattress for keeping baby cool: eve baby cot mattress

The very best baby mattress you can buy

Specifications
Size: 60cm x 120cm and 70cm x 140cm
Depth: 12cm
Type: Foam/Springs
Reasons to buy
+Suitable until your child is six+Antibacterial mattress cover+Waterproof protector+30 night free trial

Stop stressing over whether your baby is sleeping too hot with the eve cot bed mattress. A mini-me of its popular memory foam mattress, we applaud its cooling properties, which are achieved using highly breathable Cairful 3D fabric that encourages air circulation. Apparently Cairful 3D is 400 times more breathable than standard mattress fabrics – wowsers! Made with advice from the BPA (Baby Products Association) for extra peace of mind, too.

Read our review of the (adult-sized) Eve mattress.

Simba Hybrid cot mattress

2. Best baby mattress for smart features: Simba Hybrid Cot mattress

Looking for something packed with features? Opt for the Simba Hybric cot mattress

Specifications
Size: 60cm x 120cm and 70cm x 140cm
Depth: 10cm
Type: Foam/Springs
Reasons to buy
+Washable cover+Breathable+Hypoallergenic

A pint-sized version of Simba’s award-winning Hybrid mattress, the Simba Hybrid cot mattress is fully loaded with the latest bed-in-a-box benefits. As the name suggests, it’s a mix of mini springs and memory foam. The cover is hypoallergenic, can be washed at 40 degrees and its zip faces inwards to prevent the risk of it catching or scratching baby – clever. The best baby mattress for those looking for something feature packed, we think.

Read our review of the (adult-sized) Simba Hybrid mattress.

John Lewis’ Pocket Spring Cotbed mattress

(Image: © John Lewis)

3. Best baby mattress for double protection: John Lewis & Partners Pocket Spring Cotbed Mattress

Ideal for babies who are prone to being sick

Specifications
Size: 70cm x 140cm
Depth: 10cm
Type: Pocket springs
Reasons to buy
+Removable and washable outer cover+Anti-allergy+Waterproof base
Reasons to avoid
-Most expensive on the list

With its extra waterproof cover, this is the best baby mattress  for puke-prone babies. Basically, the waterproof outer cover is washable at 60 degrees, while the inner cover is also waterproof so works as a good temporary surface while your washing machine is doing its thing. Construction is a foam and spring combo offering medium firmness. 

The Little Green Sheep’s Twist Natural Cot Mattress

4. Best eco baby mattress: The Little Green Sheep’s Twist Natural Cot Mattress

Made from breathable cotton, coconut fibres and comfy natural latex derived from the Hevea Tree

Specifications
Size: 60cm x 120cm
Depth: 10cm
Type: Natural coir, cotton and latex
Reasons to buy
+100% natural+Dual-sided - one side for baby the other for toddler+Made from breathable cotton+Free from chemical fire retardant sprays or adhesives
Reasons to avoid
-Cover isn't waterproof-Hand-wash only

You can’t move for enthusiastic reviews of The Little Green Sheep’s best-selling Twist Natural Cot Mattress on parenting chat sites, so we’d be remiss not to include it in our list. The Twist’s main USP is that it’s dual-sided – the firm side is recommended for birth to 12 months, while the medium side will carry them comfortably up to five years. In our opinion, this is the best baby mattress for those looking for something natural.

Mothercare luxury anti allergy pocket spring cot mattress

5. Best allergy-friendly baby mattress: Mothercare luxury anti allergy pocket spring cot mattress

Looking for luxury? This is the best baby mattress for you

Specifications
Size: 60cm x 120cm
Depth: 10cm
Type: Ellergenic Dual Core
Reasons to buy
+Dual core+Machine washable outer cover which has anti-microbial and anti-fungal materials+Removable cover

Mothercare’s top-end cot mattress also has allergy protection at its heart, this time using a clever probiotic textile treatment that naturally deters allergens created by dust mites. Pocket springs, (180 of them, to be precise) provide zoned support and a waterproof barrier keeps the core protected from ‘little accidents’. 

Silentnight Safe Nights Essentials Cot Bed Mattress

6. Best budget baby mattress: Silentnight Safe Nights Essentials Cot Bed Mattress

A cosy night's sleep on a budget

Specifications
Size: 70cm x 140cm
Depth: 10cm
Type: Ellergenic Dual Core
Reasons to buy
+Hypoallergenic
Reasons to avoid
-Empty List

It may be the cheapest cot bed mattress in Silentnight’s new Safe Nights range, but the Essentials covers all the basics for a decent sleep. Foam and chemical free, it’s made from 100 per cent recyclable Eco Comfort fillings – so you can start baby off with a clean eco conscience - plus the cover is washable, which is always a good thing. The best baby mattress for those on a budget, we think.

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