Wayfair Sleep King Size Mattresses Under £150

Kingsize (5'), 20cm

This Iyer nature gel memory foam mattress is designed with a double-layer all-foam system, improving support and heat dissipation, The mattress layers include a 2cm certified gel memory foam layer and 18cm of high-density base support foam for ultimate comfort. It includes a soft hypoallergenic cover layer that is washable for your convenience. All-foam bed design combines expertise and the best materials with advanced sleep technology. Memory foam is conducive to continuous airflow and breathable; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foams adapt and conform to your body for optimal pressure relief. Specialized foams reduce motion transfer of a partner so your sleep is undisturbed. This mattress is compressed and packaged in a box for shipping, allowing it to easily be delivered to your door and expand to its full lofty shape inside your home. They fit all frames, such as box springs, floor, slatted base, flat platform or adjustable bed, and hospital bed. Note: Please allow up to 72 hours for the mattress to fully expand and for any potential odors to dissipate.

Lovely mattress, no smell and expanded quite quickly, waited the 48 hours before putting on the bed. Anonymous. Crawley, GB. Wed Aug 26 2026

Kingsize (5')

Designed to suit a wide range of sleepers, this mattress combines gentle comfort with reliable support for a restful night’s sleep. Plush, super-soft comfort layers cushion your body, while the supportive open coil spring system helps distribute weight evenly and maintain overall comfort throughout the night. With a medium feel, it strikes a balanced comfort level that works well for guest rooms, growing families, and everyday use alike. The breathable construction allows air to circulate through the mattress, helping to create a fresher and more comfortable sleep surface. Practical and easy to live with, this mattress features a single-sided design, so there’s no need to flip it over. Simply rotate it every three months to keep it in great condition. Comfortable, supportive, and low maintenance, it’s a smart choice for modern homes. Available in a range of sizes, it’s easy to find the right fit for your bed and sleeping space.

Excellent product I highly recommend. Clea. Oxford, GB. Fri Apr 10 2026

Kingsize (5')

The Nebraska mattress is approximately 7.5 inches deep and is finished with a modern and soft quilted sleeping surface that cushions the sleeper's body for excellent comfort. With a stylish border that will complement any room. Constructed with a traditional European-engineered Bonnell coil spring unit and topped with generous comfort layers of luxury padding as well as memory foam. The memory foam relieves pressure on the body, which helps soothe aches and pains while supporting the body, allowing the sleeper to feel relaxed and making sleep more comfortable. Designed with a 19-cm-deep base, its breathable fabric allows constant airflow to keep the mattress cool and fresh throughout the night so that sleepers can enjoy a peaceful night’s sleep. The mattress is single-sided; simply rotate it every so often to keep it in pristine condition and enjoy its long-lasting performance. It will be delivered vacuum-packed, rolled, and boxed; once unpackaged, we recommend leaving the mattress for 24 to 48 hours to allow it to expand to its original size before enjoying endless nights' sleep.

Amazing quality and such a great price. Becky. Warrington, GB. Thu Aug 27 2026

Kingsize (5')

Everyone in the family deserves a restful night's sleep on a mattress that offers both support and comfort. Our Tight Top Innerspring Mattress is an affordable and durable choice for any bedroom, designed to provide the perfect balance of firm support and gentle cushioning. Featuring a traditional open coil system, this ergonomic mattress ensures even weight distribution and reduces motion transfer for a peaceful, undisturbed sleep. The quilted top layer and foam padding add a touch of softness and breathability, making it ideal for all types of sleepers. Designed to fit seamlessly with a platform bed frame, divan base, or slatted bed frame, this spring mattress is available in two height options to suit your needs. Plus, for ultimate convenience, it arrives rolled and boxed, making it easy to transport and set up in minutes—simply unbox, unroll, and allow up to 72 hours for full expansion.

Super comfy! Daughter loves it. Anonymous. Mon Jul 20 2026

Kingsize (5')

Everyone in the family deserves a restful night's sleep on a mattress that offers both support and comfort. Our Tight Top Innerspring Mattress is an affordable and durable choice for any bedroom, designed to provide the perfect balance of firm support and gentle cushioning. Featuring a traditional open coil system, this ergonomic mattress ensures even weight distribution and reduces motion transfer for a peaceful, undisturbed sleep. The quilted top layer and foam padding add a touch of softness and breathability, making it ideal for all types of sleepers. Designed to fit seamlessly with a platform bed frame, divan base, or slatted bed frame, this spring mattress is available in two height options to suit your needs. Plus, for ultimate convenience, it arrives rolled and boxed, making it easy to transport and set up in minutes—simply unbox, unroll, and allow up to 72 hours for full expansion.

Happy with my purchase very comfortable. Iona. Wed Aug 05 2026

Kingsize (5")

This mattress features an open coil design which offers a soft level of support, making it ideal for those who enjoy softer surfaces for sleeping. Then open coil spring unit helps distribute your weight evenly and a layer of memory foam adapts to your body for a tailored night's sleep. It is available in a range of sizes to suit your bed.

was really good, i accidentally ordered the wrong size so now need a new one.. Anonymous. Mon Aug 24 2026

Kingsize (5')

Enjoy a supportive and comfortable night’s sleep with this UK-made memory foam sprung mattress. Designed with a European-engineered 13.5-gauge spring unit, it combines reliable support with generous layers of luxury padding and responsive memory foam for a balanced sleeping surface. The memory foam comfort layer gently adapts to the body, helping to relieve pressure and improve overall sleep comfort. A super-soft micro-quilted sleeping surface adds an extra layer of cushioning, while the contemporary straight-line design gives the mattress a clean, modern finish. The cool-touch sleeping surface is designed to enhance comfort throughout the night, making this mattress a practical choice for both adults and children. It is made to fit standard UK bed bases; however, due to the overall mattress depth, it may not be suitable for bunk beds. Manufactured in the UK and compliant with BS 7177:2008 for domestic use, the mattress is vacuum-packed, rolled and boxed using in-house technology for convenient delivery and easier handling around the home.

Good one. Liana. GB. Tue Aug 25 2026

Kingsize (5')

Designed for comfortable everyday sleep, this hybrid mattress combines a supportive European-engineered spring system with a super-soft memory foam comfort layer. With a soft-to-medium feel, it offers a balanced blend of cushioning and support, making it a versatile choice for a wide range of sleepers and bedrooms. Multiple comfort layers help create a cosy and supportive sleeping surface, while selected fillings are made using 80% recycled materials for a more considered construction. The breathable cool-touch sleep surface is designed to encourage airflow and help reduce heat build-up, supporting a fresher and more comfortable night’s sleep. Practical and versatile, this mattress is well suited to children’s bedrooms, bunk beds, guest rooms, spare rooms, loft spaces and apartments. For easier handling, it is vacuum-packed, rolled and boxed for delivery, then expands back towards its intended size and shape once unpacked.

had the mattress for around 2 years now.. best purchase ever.. so comfortable and cozy!. Anonymous. Mon Jul 13 2026

Kingsize (5')

Get the perfect balance of comfort, support, and affordability with our premium memory foam mattress, designed to deliver restorative sleep without breaking the bank. Crafted with body-hugging memory foam, this medium-firm mattress contours to your shape, providing ergonomic support that helps you wake up feeling refreshed. Infused with green tea and active charcoal, this mattress actively combats odours and moisture, keeping your bed feeling fresh night after night. The breathable knitted cover enhances airflow, ensuring a cooler, more comfortable sleep experience. Certified by OEKO-TEX® and CertiPUR-US®, it meets the highest safety and environmental standards, so you can rest easy knowing it’s free from harmful chemicals. For ultimate convenience, this mattress arrives compressed and rolled in a compact box—simply unbox, unroll, and watch it expand to its full shape within 72 hours. Backed by a 10-year limited warranty, it's an ideal choice for guest rooms, spare bedrooms, or everyday use.

Good quality, comfortable to sleep on. Thank you. Patrycja. Coventry, GB. Thu Apr 23 2026

Kingsize (5')

Enjoy a comfortable and supportive night’s sleep with this expertly designed hybrid mattress, combining responsive open coil springs with a high-density foam comfort layer. The combination provides reliable support while gently cushioning the body, creating a balanced medium-soft feel that is ideal for sleepers who prefer a softer and more welcoming sleeping surface. The supportive open coil spring system helps distribute body weight evenly across the mattress, reducing concentrated pressure and providing consistent support throughout the night. Above the springs, a high-density open-cell foam layer responds to the contours of the body, adding an extra level of cushioning and comfort. Finished with a soft micro-quilted Cooltouch cover, the breathable sleeping surface encourages airflow and helps reduce heat build-up for a cooler, fresher night's sleep. A contemporary grey border with an elegant wavy quilted design gives the mattress a smart, modern finish while helping reinforce the overall construction. Available in a selection of popular sizes including Single, Double and King, this versatile mattress is suitable for a wide range of bedrooms, from everyday master bedrooms to guest rooms and children's or teenagers' rooms. For added convenience, the mattress is vacuum-packed, rolled and boxed, making it easier to transport and manoeuvre through the home before setting up. Once unpacked, simply allow the mattress time to expand towards its intended shape and depth. Combining supportive spring technology, comfortable foam cushioning and a breathable sleep surface, this mattress is a practical choice for anyone looking to upgrade their sleep with dependable everyday comfort and support.

Decent mattress. Bought as I moved into my first home and considering it’s one of the ‘ cheaper ‘ ones it’s very comfortable. Anonymous. Sun Aug 09 2026

Kingsize (5')

Enjoy a comfortable and supportive night’s sleep with this memory foam sprung mattress. Designed with eight comfort layers, it combines a super-soft, expertly hand-tufted top panel with responsive memory foam and a supportive open-coil spring system. The visco-elastic memory foam comfort layer helps to gently adapt to the shape of your body, providing cushioning support throughout the night. At the core of the mattress, a European-engineered 13.5 Bonnell open-coil spring system helps distribute body weight and pressure evenly across the sleeping surface for balanced comfort and support. The soft top panel enhances the overall feel of the mattress while helping to promote a cooler, more comfortable sleeping environment. For convenient delivery and easier handling around the home, the mattress is vacuum-packed, rolled and boxed using our specialist in-house technology.

Really good i mean there are better and worse mattresses i still bought a mattress topper. Anonymous. Wed Aug 19 2026

Kingsize (5")

The perfect blend of quality and affordability, this hybrid mattress combines a traditional base of supportive coil springs with a top layer of cushioning comfort foam in a breathable, soft-knit cover. The medium firmness level will suit each member of the family and complement all sleeping positions. Giving you the best of both worlds, each component of this hybrid mattress works together to give you a more restful night’s sleep, leaving you feeling fresh and invigorated each morning, ready to tackle the day ahead. 18cm deep. Available in Single, Small Double, Double and King sizes. Best suited to apartments and lofts, guest rooms, children’s beds or as a low cost, high value option for the master bedroom.

Good quality mattress. Used for our son's bed and he says it's very comfortable. Recommend.. Dionne. Melksham, GB. Sun May 17 2026

Kingsize (5')

Bring a touch of luxury hotel comfort to your home with this hybrid mattress, boasting a cover of natural Egyptian cotton encasing a traditionally supportive coil sprung base and an eco-friendly comfort layer at the top. The firm comfort level is ideal for back and stomach sleepers, and the breathable fabric gives you a naturally cooler, softer and more restful night’s sleep for a fresh and invigorated morning, whether in your master bedroom, guest room or on a child’s bed. 18cm deep. Available in Single, Small Double, Double and King sizes.

Great quality and delivered quickly. Anonymous. Tue Aug 11 2026

King

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

Kingsize (5')

This mattress is designed to help solve five common sleep problems: Tossing and turning, back support and alignment, balanced sleep temperature, partner movement, and sagging. The memory foam and convoluted foam in the pillow: The top allows for complete relaxation by molding to your body, relieving key pressure points, and promoting airflow and breathability, the core is made of high-performance independently encased coils, designed to eliminate motion disturbance and keep you sleeping soundly. Prevents bad smells, is cool during summer and warm in winter, regulates body temperature, and absorbs moisture, special air vents help to keep the mattress dry all the time.

Easy to order quick delivery and just what I was looking for - mattress is comfortable. Vashti. Newlyn Penzance, GB. Wed Aug 19 2026

Kingsize (5')

Enjoy reliable comfort and support with this thoughtfully designed spring and foam mattress. Combining a responsive open coil spring system with supportive foam layers, it delivers a medium-soft feel that gently cushions the body while maintaining overall stability. The open coil structure helps distribute weight evenly across the mattress, while the foam comfort layer contours to your shape to reduce pressure points. A breathable, micro-quilted cover adds a soft finishing touch and helps promote a cooler, fresher sleep surface. Built for both comfort and convenience, this mattress arrives vacuum-packed and rolled for easier delivery and setup, making it a practical choice for modern homes.

Basic but for and comfortable. Michalina. London, GB. Sun Mar 08 2026