Thin King Size Mattresses

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

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

Experience superior comfort with the PureDream Memory Foam Mattress by DS Living, designed to support restful, undisturbed sleep. Featuring Intelli-Memory Foam that adapts to your body’s contours, it provides pressure relief and promotes spinal alignment, while the durable high-density OptiCore base ensures lasting support for all sleep positions. This 13cm thick mattress is ideal for lighter weight users and children up to the age of 15, as we typically recommend 15cm and under for younger sleepers. For adults, we suggest choosing a mattress that is 20cm or thicker for optimal support and comfort. The soft-knit, removable, and washable cover ensures a fresh, hygienic sleep environment, while breathable materials help regulate temperature. Delivered as a mattress in a box, it quickly expands to its full size upon unpacking, with a 10% expansion variance that’s normal for memory foam. Proudly crafted in the UK, the PureDream mattress meets BS 7177 fire safety standards and is CertiPUR-certified, ensuring it’s free from harmful chemicals. Safe for your family and built to last, it’s the best memory foam mattress for those seeking premium comfort and peace of mind.

Giving you the perfect blend of comfort and support without the need for a thicker mattress, the 12cm deep Reflex delivers on quality and affordability. Available in Shorty, Small Single, Single, Small Double, Double and King sizes. Topped with a layer of responsive memory foam on a base of reflex foam, all encased in a hypoallergenic Tencel cover, the medium firm comfort level is suited to all sleepers, no matter your position, making it a great choice for guest beds or children’s rooms. The slim profile is also ideal for bunk beds, holiday homes, and caravans. Especially designed to reduce roll-together through minimised movement transfer, this mattress is perfect for couples, and since there are no springs, the noise-free sleep experience helps to reduce waking periods, giving you a more restful night.

Very comfortable, would definitely recommend!. Anonymous. Sat Sep 12 2026

Our budget recon foam mattress is great value for anyone who is looking for a firm mattress and does not like the feel or warmth associated with memory foam, or the bounce that comes from springs. Recon foam is a non-reacting foam and therefore provides great orthopaedic support to the body. This silent mattress is suitable for all bed types. Single-sided mattress - please do not turn. Vacuum packed and rolled for easy delivery and transportation. Please note: once unrolled the mattress requires up to 72 hours to fully expand and reform to its original shape. The additives used in the manufacturing of foam may give rise to a slight odour. If this should occur, please remove all packaging and store it in a well-ventilated room for 48 hours. The odour is safe and will dissipate over time.

Brilliant mattress. Firm and perfect as a first big kid bed. Anonymous. Sun Aug 25 2024

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.

Our budget Recon foam mattress is great value for anyone who is looking for a firm mattress and does not like the feel or warmth associated with memory foam, or the bounce that comes from springs. Recon foam is a non-reacting foam and therefore provides great orthopaedic support to the body. This silent mattress is suitable for all bed types. Single-sided mattress - please do not turn. Vacuum packed and rolled for easy delivery and transportation. Please note: once unrolled the mattress requires up to 72 hours to fully expand and reform to its original shape. The additives used in the manufacturing of foam may give rise to a slight odour. If this should occur, please remove all packaging and store in a well ventilated room for 48 hours. The odour is safe and will dissipate overtime.

Came air packed but opened up properly within 48 hours. Comfy mattress really good price. Samantha. Grangemouth, GB. Sun Sep 15 2024

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.

An Ortho foam quality mattress provides firm orthopaedic support when used on either a divan base or a bed frame, helping to maintain the correct alignment of the spine and neck for a healthier and comfortable night sleep. Please note that fabric patterns may vary slightly from what’s pictured, but the quality remains the same.

Helped my back problems. Anonymous. Sat Jul 04 2026

Our budget Recon foam mattress is great value for anyone who is looking for a firm mattress and does not like the feel or warmth associated with memory foam, or the bounce that comes from springs. Recon foam is a non reacting foam and therefore provides great orthopaedic support to the body. All materials are hypoallergenic and sanitised - perfect for allergy sufferers. Also includes anti dust mite properties. This silent mattress is suitable for all bed types. Single sided mattress - please do not turn. Vacuum packed and rolled for easy delivery and transportation. Please note: once unrolled the mattress requires up to 72 hours to fully expand and reform to its original shape. This mattress is available in multiple sizes including: 3FT single, 4FT Small Double, 4FT6 Double, 5FT King.

Really good. Bought for a small kids bed.good quality. Anonymous. Sat Dec 07 2024

Now you can enjoy the luxury of real silver every night. The Dormeo Memory Silver mattress has a revolutionary new cover incorporating silver fibres. This plush Dormeo memory foam mattress has a super-thick Ecocell® and memory foam core, with an extra luxurious Silver cover for maximum comfort, support and protection. Our Memory Silver mattress is designed to combine the natural benefits of Silver, the world's oldest natural antibiotic, with next generation pressure relieving materials to create the best night sleep possible. The luxury cover is enriched with Silver fibres, which have natural anti-bacterial and anti-odour properties that help eliminate unpleasant odours caused by moisture absorption in the mattress. It also has the benefit of an anti-static shield to protect the mattress from dust particles that can cause allergies. Enjoy a clean and fresh sleeping environment night after night. The 2cm of high quality Dormeo memory foam in the Memory Silver mattress is sewn directly into the cover, giving you the most comfortable night's sleep imaginable. It diminishes tossing and turning, increases blood circulation and aids muscle regeneration whilst you sleep. Supporting the memory foam layer is 12cm of our uniquely breathable Ecocell® foam - the Dormeo difference. Ecocell® is designed to be permanently elastic with a 3 dimensional cellular structure, providing the perfect support for your body, whilst the Silver cover helps eliminate unpleasant odours and provides an anti-static shield.

Arrived within the given delivery date. Using it for the last few days and really happy with the firmness of the mattress with memory foam on the top.. Sourav. Uk. Mon Apr 25 2022

The Westwood Ortho Firm Foam Mattress by The Foam People has been carefully designed to provide reliable firm support, practical comfort, and long-lasting durability for everyday use. Featuring a high-density reflex foam core, this orthopaedic mattress helps to evenly distribute body weight while promoting healthy spinal alignment, making it an excellent choice for those who prefer a firmer sleeping surface.At 10cm deep, the Westwood mattress combines supportive comfort with a compact, low-profile design that is ideal for a wide range of bed types and spaces. Whether used on bunk beds, cabin beds, guest beds, trundle beds or day bedsthis versatile foam mattress offers dependable comfort without unnecessary bulk.The breathable hypoallergenic cover helps create a fresher and more comfortable sleeping environment, while the lightweight construction makes the mattress easy to move, rotate, and position when needed. Designed and manufactured in the UK, the Westwood Ortho Firm Foam Mattress is crafted using quality materials to deliver excellent value, practicality, and performance.Perfect for children, teenagers, guest rooms, occasional use sleeping spaces, and leisure vehicles, this mattress is an ideal solution for customers seeking firm orthopaedic-style support in a slim and versatile design. Delivered rolled and boxed for convenience, the mattress quickly expands and is ready to provide supportive comfort night after night.

This 7cm memory foam mattress topper enhances your bed with medium comfort and soothing pressure relief. The 7-zone ergonomic design adapts to different body areas, supporting shoulders, waist and hips for better alignment. Soft, resilient foam helps improve sleep quality, upgrade comfort and refresh your mattress instantly.

Looking for more comfort, the mattress has a deeper memory foam than the mattress, with an extra soft aloe vera cover for increased comfort, support, and protection. The mattress is designed to combine the natural healing and rejuvenating properties of Aloe Vera with next-generation pressure-relieving materials to create the best night's sleep possible.

Delivered very quickly. Really nice quality. Comes as described.. Darina. Wantage, GB. Mon Jun 12 2023

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.

This premium quality mattress, handcrafted in the UK, is a perfect choice for anyone looking for a dependable source of comfort in their bedroom. The mattress boasts a unique combination of two layers of Comfort Foam - the Top Comfort Layer and the Flipped Comfort Layer, which work together to provide an exceptional level of support to your body. It is an ideal choice for sleepers who prefer a perfect balance between comfort and support while sleeping. The thoughtfully designed mattress guarantees a restful and comfortable sleep, and it comes in various sizes to match your bed's specifications.

This mattress has been carefully designed to offer support and promote muscle recovery to help maintain an active lifestyle. This mattress features a combination of Top Comfort Layer and Flipped Comfort Layer of Memory Foam, which provide a medium level of support & Ideal for sleepers who want that mix between comfort and support. The mattress design ensures a comfortable night's sleep and it is available in a range of sizes to suit your bed.

Looking for a high-quality and reliable mattress to enhance your sleeping experience? Look no further! This mattress is proudly crafted in the UK and offers the perfect combination of comfort and support. It features both a Top Comfort Layer and a Flipped Comfort Layer of Comfort Foam, which are strategically placed to provide you with the ultimate sleeping experience. The Top Comfort Layer is designed to adjust to your body's shape, offering a personalized level of comfort, while the Flipped Comfort Layer provides the perfect amount of support to keep your spine aligned throughout the night. So, if you're looking for a medium level of support and a comfortable night's sleep, this mattress is an excellent choice. Available in a range of sizes to fit any bed, you can rest easy knowing you've made the right choice.

Springs come through mattress, Would not recommend, very hard. Emma Egan. Chorley, GB. Fri Sep 05 2025