Medium Small Double Mattresses (under 15cm Thick)

Sleep. Grow. Thrive. The Thrive Kids Trundle Eco Comfort Foam Mattress is designed to give children and teens a supportive, comfortable night’s sleep at an affordable price. Built with high-density Eco foam, this medium-firm mattress provides orthopaedic support that helps growing bodies maintain healthy posture and proper spinal alignment. Perfect for trundle beds, bunk beds, cabin beds, and guest beds, the low-profile design fits safely and securely into most raised frames. The silent, spring-free foam construction ensures no noisy springs or motion transfer, making it ideal for shared bedrooms, sleepovers, or light sleepers. This mattress is UK made with over 20 years of mattress-making experience, using CertiPUR certified foam and BS7177 fire safety compliant. The quilted, zip-off machine-washable cover keeps the mattress fresh, while the hypoallergenic, dust-mite resistant foam supports a healthier sleep environment for children. Lightweight, durable, and easy to clean, the Thrive Kids mattress is a smart, value-for-money choice for parents looking for comfort, support, and practical features without overspending.

It’s good value for the money , comfortable and cosy. Anonymous. Fri Jun 19 2026

Designed for restorative sleep, this 11cm 3‑layer foam mattress combines cooling memory foam, soft comfort foam, and high‑density support foam to deliver pressure relief and balanced spinal alignment. The breathable, skin‑friendly cover and OEKO‑TEX® certified foams create a safe, comfortable sleep environment. Fully compliant with UK fire safety standards (BS 7177), this versatile mattress is suitable for bed frames, sofa beds, or floor use. Available in Single(90x190cm), Small Double(120x190cm), Double(135x190cm) and King(150x200cm) sizes to suit different bed types.

Very comfortable. Melvito. Tue Jun 30 2026

An all-foam mattress designed using high-quality materials for an uninterrupted night's sleep. The mattress features high-density reflex foam as its core material. Reflex foam is a no-sink material as a very supportive and durable foam. Unlike memory foam, reflex foam is fairly firm, is not temperature sensitive, and does not mold to your body, it provides a relatively quick bounce back. Due to these special properties, the foam provides great support, it will distribute your weight evenly to relieve pressure from key areas such as your neck, shoulders, hips, and back. Due to the springless design, the mattress allows for a silent, undisturbed night's sleep. 'No roll together is a great advantage to an all-foam reflex mattress. This means both users will not find themselves rolling towards the middle of the mattress, you will also not disturb a sleeping partner when moving around at night. The mattress comes complete with a quilted cover for extra comfort. The cover is also removable to allow for easy cleaning and maintenance. Sanitized materials are used to provide hypoallergenic and anti-dust mite properties. A great mattress for allergy and asthma sufferers. This mattress is vacuum-packed and rolled for easy delivery. Please allow up to 72 hours once opened for the mattress to expand and reform to its original shape. Please Note: The additives used in the manufacturing of foam may give rise to a slight odor. If this should occur, please remove all packaging and store it in a well-ventilated room for 48 hours. The odor is safe and will dissipate over time.

Nice mattresses!. Shimaa. London, GB. Wed Apr 15 2026

Our slimmest mattress, made for the lowest bed frames — a great choice for a child's first proper mattress in bunk beds, cabin beds and mid-sleepers. Visco-elastic memory foam moulds to your child's shape, supporting the spine and neck while dispersing weight evenly to ease pressure at the shoulders, hips and lower back. Its open-cell structure lets air circulate freely, and the foam is dust mite and mildew resistant. Delivered rolled and boxed. Once unwrapped, allow 48–72 hours in a well-heated, well-ventilated room for the mattress to expand to full size and for the initial foam odour to clear. General information: Manufacturer's 1 year guarantee.

Bought it as a bed topper. Very happy with the purchased. Delivered on time. Yaku. Cork, Ireland. Tue Jan 21 2025

Give your child a comfortable, supportive night’s sleep with the Thrive Kids Trundle Support Foam Mattress. Designed with a practical 10cm low-profile design, this mattress is ideal for trundle beds, bunk beds and guest beds, making it a versatile choice for children’s bedrooms and occasional sleeping arrangements. Made in the UK using high-density reflex foam, the mattress provides balanced, medium/regular comfort while helping to distribute body weight evenly for reliable support throughout the night. The supportive foam construction is designed for children and teenagers, while the compact profile makes it particularly well suited to space-saving bed frames. The hypoallergenic foam makes the mattress a practical choice for allergy-sensitive children, helping to create a more comfortable sleeping environment. A removable cover also makes everyday care and cleaning easier. For convenient delivery and handling, the mattress is vacuum packed and rolled. Once unpacked, simply allow up to 72 hours for the mattress to fully expand before use. Manufactured in the UK, the Thrive Kids Trundle Support Foam Mattress conforms to British Fire Regulations, providing added reassurance for parents.

Anonymous. Thu Sep 10 2026

Sleep. Grow. Thrive. The Thrive Kids Support Foam Mattress delivers medium supportive comfort in a practical 14cm profile, making it an ideal choice for bunk beds, midsleepers, divans, and standard bed frames. Designed specifically for children and teenagers, it combines durability, hygiene, and everyday comfort in a reliable foam construction. Made with high-density reflex foam, this mattress provides consistent support and even weight distribution while maintaining its shape over time. Unlike memory foam, reflex foam offers a quick response, helping the mattress retain resilience and long-lasting structure for growing bodies. The mattress is finished with a soft, skin-friendly removable cover, designed for everyday practicality. The zip-off cover allows for easy removal and cleaning, helping maintain a fresh and hygienic sleep environment. The materials are also hypoallergenic and sanitised, making it suitable for allergy-sensitive children. Its all-foam construction ensures a completely silent sleep surface, with no springs or noise, ideal for light sleepers and shared bedrooms. For convenience, the mattress arrives vacuum packed and rolled, expanding fully within 72 hours after unpacking. Proudly made in the UK, this mattress also conforms to all British Fire Regulations, offering added safety assurance alongside comfort and value.

Thrive Kids Eco Comfort Foam mattress is designed with children’s comfort and safety in mind. Its 14cm high, medium-firm foam core provides a stable, supportive sleeping surface that promotes healthy posture and spinal alignment, perfect for kids, toddlers, and teenagers. The low-profile design makes it especially suitable for trundle beds and bunk beds, fitting securely while offering consistent support. Made in the UK using high-density EcoFoam sourced from recycled materials, the mattress is durable, safe, and environmentally conscious. It meets BS7177 fire safety standards and is CertiPUR-US certified for low chemical emissions, giving parents confidence in both comfort and quality. The removable, machine-washable quilted zip cover makes cleaning easy - ideal for busy households, sleepovers, or guest rooms. The sanitised, hypoallergenic foam naturally resists dust mites and allergens, helping to maintain a cleaner, healthier sleep environment for allergy-sensitive children. With a spring-free design, the mattress is silent and absorbs motion, ensuring uninterrupted sleep for light sleepers or siblings sharing a room. Practical, durable, and eco-friendly, it’s the perfect mattress for trundles, bunk beds, and guest use.

Sleep. Grow. Thrive. The Thrive Kids Waterproof Support Foam Mattress is designed to deliver practical, supportive comfort for children and teens. Featuring a 14cm high-density reflex foam core, this all-foam mattress provides consistent support and even weight distribution while maintaining long-lasting shape and resilience. The reflex foam construction helps promote healthy sleep posture by supporting the body evenly, making it a reliable choice for everyday use in bunk beds, trundle beds, divans, and standard bed frames. As a completely silent foam mattress, it eliminates spring noise, making it ideal for light sleepers and shared bedrooms. This upgraded design includes a breathable, water-resistant cover that is soft on the skin and easy to clean, offering added protection against spills, accidents, and busy family life. It is a practical, hygienic solution for growing children. Proudly UK made and manufactured to British safety standards, the mattress is delivered vacuum packed and rolled for easy transport and setup. It fully expands within 72 hours, ready to provide a clean, supportive, and durable sleep surface.

Relieve the pressure, the Brumley conceals reflex memory foam foam in a soft quilted cover to deliver the perfect night's sleep. Vacuum-packed, this mattress has a firm feel with reflex foam. Mattress life can be prolonged with regular rotation. The Brumley mattress will require 48 hours for it to return to its original size before use.

These mattresses (I got 2) are perfect for my new day bed. The one on the trundle is a little bit too big now that it’s been out of the packaging for a couple of days but still works, I just have to squeeze it down a bit to pull it out but I’d rather my guests have a comfier sleep than go for a thinner mattress.. Andrea. Angus, Scotland. Mon Sep 21 2026