Best Waterproof Cot Mattresses of 2026

The SPRINGSPIRIT Travel Cot Mattress offers ultimate convenience with its unique trifold design, making it easy for you to store, transport, and move without any hassle. Its fully waterproof and wipe-clean surface protects against spills and moisture, ensuring the foam core stays dry and hygienic, which means quick and easy clean-ups for you. The removable cover, certified to OEKO-TEX standard 100, is soft to touch and washable, adding extra comfort and practicality. Designed to fit most 60x120cm travel cots and toddler beds, it’s perfect for use at home, nurseries, or when visiting family and friends.

The iSTYLE MODE Cot Mattress offers a comfortable sleeping environment for your little one. Its 100% hypoallergenic outer cover helps regulate temperature, ensuring your baby stays cool in summer and warm in winter. This mattress features an extremely breathable fibre that promotes airflow, reducing the risk of discomfort or rashes. Additionally, it is machine washable at 40 degrees, making it easy to maintain hygiene and softness for your toddler's bedding. With its waterproof liner, you can rest assured that liquids will not penetrate the core, providing extra peace of mind.

The Mother Nurture Cot Mattress is designed with your baby's comfort and safety in mind. It is BSI Standard Certified, ensuring it meets stringent British Safety Standards, allowing you to sleep soundly knowing your little one is secure. The reversible and water-resistant cover makes cleaning easy; simply wipe it down or pop it in the washing machine. Its firm and supportive EcoLoft Fibre core provides a safe sleeping environment, while the hypoallergenic and breathable materials help keep allergens at bay, promoting a healthy sleep for your baby.

The iSTYLE Baby Cot Mattress is designed with your child's comfort and safety in mind. This hypo-allergenic cot bed mattress features a waterproof liner, ensuring protection against spills and accidents. Its breathable foam promotes airflow, helping to maintain a comfortable sleeping environment for your toddler. The easy-to-wash fabric cover can be machine washed at 40 degrees, making it convenient to keep clean. Additionally, the adjustable waterproof liner provides extra protection, while the removable cover allows for thorough cleaning, giving you peace of mind.

The BUY ALL HERE Cot Mattress offers a super soft high-quality foam that ensures your baby enjoys ultimate comfort throughout the night. This foam gently cradles your little one’s body, helping to reduce tossing and turning, so they sleep more soundly. The mattress contours perfectly to your child’s shape, providing excellent support and comfort. Additionally, it features a luxurious quilted cover that is removable and washable at 40 degrees, making it simple for you to keep the mattress fresh and clean for your baby’s well-being.

The iStyle Mode Foam Mattress is designed for baby and toddler cots, measuring 120 x 60 x 5 cm. Its fully breathable foam construction ensures optimal airflow, keeping your child comfortable throughout the night. The waterproof cover protects against spills and accidents, making it easy to maintain cleanliness. Additionally, this high-quality mattress is crafted from anti-allergic materials, promoting a healthy sleeping environment for your little one. With its quilted design, it offers extra comfort and support, allowing your child to sleep soundly.

The iStyle Mode Foam Mattress is designed for baby and toddler cots, measuring 140 x 70 cm. It features a fully breathable foam construction, ensuring your child enjoys a comfortable and safe sleeping environment. The waterproof cover provides convenient protection against spills, making it easy to maintain cleanliness. Additionally, the mattress is made from high-quality materials that are anti-allergic, reducing the risk of allergies for your little one. This mattress offers both comfort and practicality, ideal for parents looking for a reliable sleeping solution.

The Opulent Home Cot Mattress offers firm support with its high-density fibre core, ensuring your baby's spine stays well aligned as they grow. Its breathable and hypoallergenic quilted cover is gentle on delicate skin and helps prevent overheating, so your little one can sleep soundly. The built-in waterproof PU membrane protects the mattress from accidents, keeping it fresh and durable. Plus, the removable zipped cover is machine washable, making it easy for you to maintain a clean and hygienic sleeping environment for your baby.

The HANSON AND LANGFORD Travel Mattress is perfect if your baby will be sleeping in a travel cot for more than two nights, offering both support and softness for longer sleep times. It features a removable, washable quilted cover that can be cleaned at 60 degrees, ensuring hygiene and ease of upkeep. The breathable fabric keeps your baby’s skin fresh and comfortable by allowing excellent airflow. Additionally, the foam mattress meets strict UK safety standards and is free from harmful fire retardant chemicals, giving you peace of mind.