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Best Toddler Bed Mattresses for Cot of 2026

Hollie Coleman Avatar
Hollie Coleman

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Finding the perfect toddler bed mattress is essential for ensuring your little one gets a good night's sleep. A good mattress is important for their physical development and overall health. These mattresses are designed to fit standard cots and are made with high-quality materials to provide maximum comfort and support. They come in a range of sizes, thicknesses, and firmness levels, so you can choose the one that best suits your child's needs. With features like waterproof covers, hypoallergenic materials, and breathable fabrics, these mattresses offer peace of mind for parents and a restful night's sleep for toddlers.

At a Glance: Our Top Picks

Top 10 Toddler Bed Mattresses for Cot

Opulent Home Waterproof Breathable Hypoallergenic Cot Mattress

  • Opulent Home
  • OTH-COTBED-MATTRESS
  • White
  • 120 x 60 x 15 cm
Opulent Home Waterproof Breathable Hypoallergenic Cot Mattress Cover

Opulent Home Cot Bed Mattress 120x60x15cm – Waterproof, Breathable & Hypoallergenic – Anti-Allergy Baby Mattress with Removable Washable Zipped Cover – Extra Thick Support for Newborns

The Opulent Home Cot Mattress offers firm support with its high-density fibre core, helping your baby maintain healthy spinal alignment from birth through toddlerhood. Its breathable, hypoallergenic quilted cover is gentle on delicate skin and promotes airflow to prevent overheating, ensuring your baby sleeps comfortably and safely. The built-in waterproof PU membrane protects against moisture and accidents, keeping the mattress fresh and durable. Additionally, the zipped outer cover is removable and fully machine washable, making it easy for you to keep your baby's sleep environment clean and hygienic.

9.8
FTB Score

What We Like

  • Firm support for spinal health
  • Breathable and hypoallergenic cover
  • Built-in waterproof protection
  • Removable, machine washable cover
  • Safe and non-toxic materials
#TOP 2

Mamas & Papas Pocket Sprung Petite Cot Mattress

Mamas & Papas Pocket Sprung Petite Cot Mattress Cover

Mamas & Papas Essential Pocket Sprung Mattress Petite Cot - 90x54x7cm

The Mamas & Papas Petite Mattress offers a wipe-clean fixed inner protector that guards against dust mites and allergens, making it easier for you to keep your baby's sleeping area hygienic. Its airmesh outer top cover ensures excellent breathability, helping to regulate your baby’s body temperature for a comfortable night’s sleep. The mattress is free from harmful chemical treatments, so you can feel confident that your baby is sleeping in a pure and safe environment. Additionally, the all-round zip-off cover simplifies the process of removing and washing bedding, saving you time and effort after any mid-sleep accidents.

9.7
FTB Score

What We Like

  • Easy to clean inner protector
  • Breathable airmesh cover
  • Toxin free and safe
  • Convenient zip-off cover

Snuz SurfaceDuo Cot Mattress with Dual Firmness

  • Snuz
  • M021DB
  • White
  • Cot Bed - 70x140cm
Snuz SurfaceDuo Cot Mattress with Dual Firmness Cover

Snuz - SurfaceDuo Cot Mattress 140 x 70 Pocket Sprung, Two Firmness Levels with Memory Foam , White

The Snuz SurfaceDuo Mattress offers exceptional versatility for your baby's sleep needs. Its unique dual-sided design allows you to easily switch between a firm support for infants and a more supple option for toddlers, ensuring comfort as your child grows. The mattress is also vacuum-rolled, making it easy to handle and set up. Additionally, its hypoallergenic and waterproof cover helps provide a soothing sleep environment, while also being practical for those early potty training years.

9.5
FTB Score

What We Like

  • Dual-sided for growing babies
  • Hypoallergenic and waterproof cover
  • Firm and supple support options
  • Easy to clean and maintain
#TOP 4

ComfyWise Foam Breathable Travel Cot Mattress

  • ComfyWise
  • BC045
  • White
  • 120 x 60 x 5cm
ComfyWise Foam Breathable Travel Cot Mattress Cover

ComfyWise Foam Travel Cot Mattress - Breathable Cot Mattress Quilted Removable & Washable Cover - Cot Bed Mattress Perfect For Crib Mattress - Ideal Use for Toddler Bed (120 x 60 x 5cm)

The ComfyWise Travel Cot Mattress offers premium foam comfort with high-density foam that supports your child’s restful sleep. Its removable and washable quilted cover makes cleaning easy, helping you keep the mattress fresh and hygienic. Designed with breathability in mind, it ensures good airflow to maintain a cool and comfortable sleeping environment. Plus, with versatile sizing options, you can find the perfect fit for various travel cots and toddler beds, making it a practical choice for families on the go.

9.3
FTB Score

What We Like

  • High-density foam for comfort
  • Removable, washable cover
  • Breathable for cool sleep
  • Multiple size options
  • Fits cot and toddler beds
#TOP 5

ComfyWise Foam Travel Cot Mattress with Washable Cover

  • ComfyWise
  • White
  • 120 x 60 x 10cm
ComfyWise Foam Travel Cot Mattress with Washable Cover Cover

ComfyWise Foam Travel Cot Mattress - Breathable Cot Mattress Quilted Removable & Washable Cover - Cot Bed Mattress Perfect For Crib Mattress - Ideal Use for Toddler Bed (120 x 60 x 10cm)

The ComfyWise Foam Mattress offers high-density foam comfort, ensuring your little one enjoys a restful sleep every night. The removable and washable quilted cover makes it easy for you to keep the mattress clean and hygienic, ideal for toddler beds and travel cots. Its breathable design promotes good airflow, keeping your child cool and comfortable during sleep. With versatile sizing options, you can find the perfect fit for a variety of cots and toddler beds, making it a practical choice for families on the go.

9.3
FTB Score

What We Like

  • High-density foam comfort
  • Removable, washable cover
  • Breathable for airflow
  • Multiple sizing options
  • Fits various cot types
#TOP 6

Snüz Surface Duo Dual Sided Cot Mattress

  • Snuz
  • M021DC
  • White
  • Cot - 60x120cm
Snüz Surface Duo Dual Sided Cot Mattress Cover

Snüz Surface Duo Dual Sided Cot Mattress, 3D Waterproof Breathable Firm Foam Topped Pocket Sprung, for Children & Toddlers, with Washable Cover for Better Sleep, UK Cot Size, 60x120cm (White, M021DC)

The Snüz Duo Cot Mattress offers premium support for your little ones with its dual-sided design featuring adjustable firmness. The 3D breathable mesh cover ensures excellent airflow, keeping your child comfortable throughout the night. With a waterproof layer, this mattress protects against accidents, making it ideal for travel cots or during potty training. Additionally, its removable and machine washable cover makes cleaning effortless, allowing you to maintain a hygienic sleeping environment for your baby or toddler.

9.2
FTB Score

What We Like

  • Dual-sided for adjustable firmness
  • Breathable mesh cover
  • Waterproof and easy to clean
  • Hypoallergenic materials
#TOP 7

KATY Superior Deluxe Spring Cot Bed Mattress 140x70

  • KATY
  • BBB-KATY®-140
  • White
  • 1 Count (Pack of 1)
KATY Superior Deluxe Spring Cot Bed Mattress 140x70 Cover

KATY® Superior Deluxe Spring Cot Bed-Junior Bed Sprung Mattress 140x70 x 10CM THICK British Made With High Grade Density Foam CMHR28

The KATY Superior Mattress is a British-made cot bed mattress designed with high-grade density foam CMHR28 that supports your baby's spine comfortably. It features a traditional Bennelli spring unit for added support and durability. The mattress is covered in a white stockinette and includes an adjustable waterproof membrane, which you can position to protect the mattress where needed, making it practical for everyday use. Importantly, it is manufactured without harmful fire retardants like antimony, phosphorus, or arsenic, ensuring a safer sleeping environment for your child.

9.0
FTB Score

What We Like

  • Free from harmful fire retardants
  • Adjustable waterproof membrane
  • High-grade density foam CMHR28
  • Fits standard cot and junior beds
  • British made to high standards
#TOP 8

MOTHER LAND Toddler Cot Bed Foam Mattress

MOTHER LAND Toddler Cot Bed Foam Mattress Cover

MOTHER LAND Toddler Cot Bed - Cot Mattress, Fully Breathable Foam Mattress & Poly Cotton Cover, White, 140 x 70 x 13cm

The MOTHER LAND Cot Mattress offers a quilted polypropylene foam surface that is both comfortable and supportive, ideal for your toddler’s cot bed. The removable zipped cover is machine washable, making it easy for you to keep the mattress fresh and clean. Made without harmful fire retardants such as antimony, phosphorus, or arsenic, the foam ensures a safer sleeping environment for your child. Professionally manufactured in the UK, this mattress meets the latest British safety standards, giving you peace of mind about its quality and safety.

8.9
FTB Score

What We Like

  • Machine washable cover
  • Free from harmful chemicals
  • Meets UK safety standards
  • Comfortable foam support
  • Removable zipped cover
#TOP 9

Fahuac Inflatable Kids Travel Bed Set

  • Fahuac
  • Blue
  • 62*40*12 inch
Fahuac Inflatable Kids Travel Bed Set Cover

Inflatable Kids Travel Bed Toddler Air Mattress Set - Portable Blow Up Mattress Sleeping Bed Cot with Security Bed Rails and Electric Pump Ideal for Road Trip Camping Sleepovers etc. (Upgraded)

The Fahuac Travel Bed is an ideal solution for parents seeking a portable sleeping option for their toddlers. Its dual lock air-tight valves ensure that the bed stays inflated throughout use, giving you peace of mind. With guard rails included, your child can sleep safely without the risk of falling out. The durable material, being 50% thicker than average, guarantees longevity and comfort. Additionally, the super fast inflate/deflate feature means you can set it up in just 30 seconds, making it perfect for camping trips or sleepovers.

8.9
FTB Score

What We Like

  • Quick to inflate and deflate
  • Secure guard rails for safety
  • Durable and long-lasting material
  • Portable and easy to carry
  • Fits standard crib sheets
#TOP 10

Baby RES Fully Pocket Sprung Cotbed Mattress 140x70x10 cm

  • NURSERY SUPPLIES
  • White
Baby RES Fully Pocket Sprung Cotbed Mattress 140x70x10 cm Cover

Baby RES® Breathable Fully Pocket Sprung (Spring) COTBED/COT Bed Mattress 140 X 70 X 10 cm/Fast DELIVERY

The Baby RES Pocket Sprung Mattress offers firm support thanks to its steel coil springs, which ensure durability and comfort for your child. With a high spring count, this mattress provides excellent support ideal for young children, helping them sleep soundly for up to five years. Its traditional fully sprung design means you get a reliable and long-lasting mattress perfect for a cotbed or toddler bed, making it a practical choice for your nursery.

8.7
FTB Score

What We Like

  • Firm and durable support
  • High spring count
  • Suitable for young children
  • Long-lasting mattress
  • Traditional sprung design

Frequently Asked Questions (FAQs)

1. What kind of mattress do you use for a toddler bed?

The standard toddler mattress size is the same as a crib mattress: 27 ¼ inches x 51 ⅝ inches. Many cribs—often called convertible cribs—turn into toddler beds using the same mattress. Some even convert into a twin bed or daybed as well.

2. Is a cot bed mattress the same size as a toddler bed?

The dimensions of a toddler bed range between 144 – 166cm in length with a width of between 73 – 79cm. Toddler beds require a mattress size of 70cm x 140cm, the same footprint size as a cot bed, so if your child is transitioning from a cot bed you may not need to buy a new mattress straight away.

3. What type of mattress is best for a cot?

If you choose a cot bed, you may prefer a coil spring mattress as they tend to be longer lasting than foam. The space within the spring lattice allows for increased airflow through the mattress. This helps to regulate a child's body temperature and to keep the mattress fresh.

4. What size is a cot bed mattress?

A UK standard Cot requires a mattress size of 120 x 60 cm. A UK standard Cot Bed requires a mattress size of 140 x 70 cm. If you have a non-UK standard cot, you will have to order customize made mattress to fit it.

Editor's Notes

During our toddler bed mattress for cot research, we found 37 toddler bed mattress for cot products and shortlisted 10 quality products. We collected and analyzed 5,228 customer reviews through our big data system to write the toddler bed mattresses for cot list. We found that most customers choose toddler bed mattresses for cot with an average price of £37.07.

The toddler bed mattresses for cot are available for purchase. We have researched hundreds of brands and picked the top brands of toddler bed mattresses for cot, including Opulent Home, Mamas & Papas, Snuz, ComfyWise, KATY. The seller of top 1 product has received honest feedback from 105 consumers with an average rating of 4.0.

Written by

Hollie Coleman Avatar

Hollie Coleman

Hollie Coleman is a paediatrician from Cambridge. She acquired her degree from the University of Oxford, where she also built her copywriting skills. Hollie practiced as a paediatrician for seven years; she wrote and published a couple of books on baby products that sold massively in Europe. With Hollie's vast knowledge in paediatrics, she now dedicates her time to publishing more articles on baby products for FindThisBest.