Medium-Firm King Size Mattresses Under £150

Our mattress is designed with a two-layer full foam system with a top layer of 4cm gel memory foam that is naturally antimicrobial and resistant to allergens, mold, bacteria and dust mite, and 16cm (or 11cm for the whole thickness of 15cm) sturdy support foam to ensure great comfort and more durability.

Very very comfy, slept so much better ever since having it! Easy to get out of packaging as it comes with a mattress wrapper cutter. Perfect fit as well.. Anonymous. Sun Oct 18 2026

Look forward to going to sleep quicker and staying asleep longer on this mattress. It will support the body's sleeping position every night. It combines the excellent support and comfort of the pressure-relieving layer of responsive individually wrapped material to provide a superior level of luxury and relaxation.

Great bed and mattress! Super comfy and exactly as described!. Manon. Thu Sep 10 2026

Beautiful and very good quality especially for my back.. Kay. Gloucester, GB. Sat Jul 25 2026

Sleep better every night with this hybrid pocket sprung mattress. It combines responsive comfort foam with individually pocketed springs to deliver medium-firm support, effective pressure relief and improved spinal alignment. Motion isolation reduces partner disturbance for uninterrupted sleep, while the breathable design ensures long-lasting comfort night after night.

amazing item very comfortable and delivery was spot on very happy customer. Anonymous. Wed Sep 09 2026

Experience cloud-like comfort every night. This 10-inch hybrid mattress combines responsive pocket springs and plush comfort foam for balanced support and pressure relief. Individually wrapped springs reduce motion transfer and support your neck, shoulders, back and hips for a more restful sleep. Finished with a breathable soft-touch cover, it keeps you cool and comfortable all night—ideal for everyday comfort and healthy spinal alignment.

High-quality product, Super comfortable, I recommend it. Very punctual delivery, all my purchases have always been delivered on time… The delivery team deserve congratulations.. Anonymous. Tue Oct 13 2026

Upgrade your sleep experience with the Orion mattress. Designed to provide exceptional comfort and support, this mattress is perfect for those seeking a restful night's sleep. Made with high-quality materials to ensure long-lasting durability and resilience, maintaining its shape and support over time. Hassle-Free Delivery: Compressed and vacuum-packed for easy setup, simply unbox, unroll, and enjoy immediate comfort.

Very happy with the quality for a cheap mattress. Would definitely recommend and buy again.. Anonymous. Mon Sep 07 2026

Transform your nights with the Winksleep Air Feel Orthopedic Memory Foam Spring Mattress, designed to provide lasting comfort and reliable support. Crafted in the UK, this mattress combines a responsive memory foam layer with a system of individually wrapped springs to deliver medium-firm comfort that adapts to your body, relieves pressure points, and promotes proper spinal alignment. Its breathable, hypoallergenic knitted cover resists dust mites and allergens, keeping your sleep environment clean, fresh, and ideal for allergy sufferers. The mattress is also excellent at reducing motion transfer, so you’ll feel less disturbed by a partner’s movements at night. With reinforced edges for added stability, a 22cm thickness for enhanced comfort, and a 125kg weight capacity, this durable mattress provides dependable performance. Delivered vacuum-packed and rolled, it is quick and easy to set up in any bedroom, fitting most frames including divan, slatted, and ottoman beds.

Feels fine, although softer than expected from a mattress described as medium firm. Elaine. Bo'ness, GB. Fri Sep 26 2025

Enjoy restful nights with the Winksleep Pocket Spring Memory Foam Mattress, crafted by Bedzonline to offer a balanced mix of comfort and support. The design combines pocket spring technology with a layer of memory foam, giving a medium-firm feel that adapts to the body. Each spring responds individually to movement, helping to minimize partner disturbance and provide balanced pressure relief. The memory foam surface gently contours to the body, helping to maintain a natural sleeping position. The breathable micro-quilted cover and side border allow steady airflow, helping to keep the sleep surface fresh. A soft fiber layer adds comfort while protecting the core structure, and the non-slip bottom fabric keeps the mattress steady on your bed frame. Produced with careful craftsmanship and designed to meet UK standards, this mattress is a suitable choice for back sleepers, guest rooms, or family bedrooms.

Great mattress and a fantastic price!. Anonymous. Mon Apr 27 2026

Experience restful and supportive sleep with the Winksleep Orthopedic Memory Foam Spring Mattress, designed to combine the comfort of memory foam with the support of individually wrapped springs. The memory foam conforms to your body’s curves to relieve pressure and reduce fatigue, while the springs provide full-body support and minimize motion transfer, making it ideal for shared beds. Breathable, skin-friendly knitted fabric ensures airflow and a cool, comfortable night’s sleep. Available in 2FT6 Small Single, 3FT Single, 4FT Small Double, 4FT6 Double, and 5FT King, it fits most bed frames including divan, slatted, and ottoman beds. Delivered compressed, vacuum-packed, and rolled for easy setup, the mattress fully expands in about 24 hours for optimal comfort and performance.

Super comfy ideal for my teenage son. Nadine. Tue May 14 2024

Experience restorative comfort with the Winksleep Hydro Memory Foam Spring Mattress, designed to balance softness and support. With a medium-plush feel, this hybrid mattress combines breathable Hydro Memory Foam with a responsive pocket spring system for consistent comfort and proper spinal alignment. The advanced foam layer improves airflow and helps regulate temperature for a cooler night’s sleep. Individually encased springs adapt to body movement and minimize motion transfer, so you and your partner can rest undisturbed. Suitable for back, side, or stomach sleepers, this mattress relieves pressure points while promoting healthy, comfortable sleep every night.

Excellent quality and very comfortable to sleep on. Sarah. Tottenham. Mon Apr 13 2026

This foldable gel-infused memory foam mattress delivers supportive medium-firm comfort with excellent pressure relief. The tri-fold design is easy to store, move and use for guests, camping or small spaces. A breathable removable cover keeps the surface hygienic, while the mattress ships conveniently compressed in a box.

Love this perfect for guest, it’s compact easy to put away and comfortable. Anonymous. Tue Aug 04 2026

This pocket-sprung memory foam mattress is constructed with supportive foam material that conforms to your body as you sleep. Featuring individually wrapped pocketed coils that help reduce motion transfer for uninterrupted rest, while providing ergonomic support by adapting to your sleeping position. The coil system also allows for airflow through the mattress, promoting a breathable sleeping environment.

Nice comfortable bed, really good value for money, but the memory foam topper is very thin so you feel a lot of movement. Gemma. Stoke Gabriel Totnes, GB. Mon Oct 05 2026

Enjoy restful nights with the Winksleep Open Coil Mattress, designed to combine comfort, support, and durability. Featuring a traditional open coil construction with a quilted top layer, this mattress ensures balanced support for your body while promoting airflow for a cooler sleep experience. Ideal for all sleeping positions, it provides reliable comfort night after night. Crafted with quality materials and built to last, the Winksleep Open Coil Mattress is perfect for those seeking a supportive yet affordable solution for better sleep. Its easy-to-maintain cover keeps your mattress fresh and clean, while the robust coil system offers lasting stability.

Great value for money, good quality mattress and comfortable to sleep on. Anonymous. Mon Sep 07 2026

Discover the perfect night’s sleep with the Bedzonline Hybrid Memory Foam & Spring Mattress, designed to combine comfort, support, and eco-friendly craftsmanship. Engineered with multiple layers of ergonomically designed comfort, this mattress promotes spinal alignment and ensures the ideal sleeping posture for restful, rejuvenating nights. Crafted with brand-new open coil springs and ultra-firm polyester filling, it offers a stable yet comfortable foundation that adapts to your body while maintaining long-lasting durability. The mattress features cool-touch, skin-friendly fabrics, isolated comfort layers, and a micro-quilted border, delivering ultimate breathability and hygiene. Manufactured in the UK with eco-conscious processes, the Bedzonline Hybrid Memory Foam & Spring Mattress ensures superior sleep quality with a lower carbon footprint, free from recycled springs and allergens.

Happy with the goods I have bought I have had no problems with anything. Jayne. Blackpool, GB. Sun Feb 22 2026