Medium Firm King Size Mattresses
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Sale Stirling Mattress £329 Regular price £379Add to cart -
Sale Luna Mattress £199 Regular price £269Add to cart -
Sale Regency 1500 Natural Pocket Mattress £379 Regular price £489Add to cart -
Sale SleepSoul Space Mattress £279 Regular price £489Add to cart -
Sale Scafell Mattress £319 Regular price £489Add to cart -
Sale Tencel 1500 Mattress £489 Regular price £729Add to cart -
Sale Ortho Gold Open Coil Mattress £209 Regular price £269Add to cart -
Sale Como Open Coil Mattress £209 Regular price £269Add to cart -
Sale Harmony Mattress £249 Regular price £449Add to cart -
Sale Bedford Mattress £379 Regular price £579Add to cart -
Sale Cotton Origins 6 Mattress £809 Regular price £1,215Add to cart -
Sale SleepSoul Heaven 3000 Pocket Mattress £369 Regular price £504Add to cart -
Sale Sleepeezee Eezee Natural 4000 Mattress £899 Regular price £1,041Add to cart -
Sale Sleepeezee Eezee Memory 4000 Pocket Sprung Mattress £749 Regular price £907Add to cart -
Sale Sleepeezee Eezee Gel 4000 Mattress £749 Regular price £854Add to cart -
Sale Sleepeezee Eezee Gel 2000 Mattress £549 Regular price £666Add to cart -
Sale Cotton Origins 8 Mattress £989 Regular price £1,486Add to cart
Across the range, you'll find different constructions to suit how you like to sleep. Memory foam styles gently adapt to your shape while keeping its structure underneath. Pocket-sprung mattresses offer a more traditional approach, with evenly distributed support across the entire surface. Hybrid designs combine springs and foam for a more responsive feel.
Who is a king-size medium-firm mattress suitable for?
Medium-firm mattresses are best for sleepers who want a mix of support and comfort without going too soft or too firm. They’re a popular choice for back, side, and combination sleepers who like a stable feel with a touch of cushioning.
What types of medium-firm king-size mattresses are available?
You’ll find memory foam, hybrid, and pocket sprung designs, each offering a slightly different balance of support and comfort.
A medium-firm memory foam mattress shapes to the body while still maintaining a supportive overall feel, helping to reduce pressure points.
A pocket-sprung mattress uses individual springs to provide consistent, even support across the surface with a more traditional feel.
A hybrid mattress is the best of both, combining foam layers with an internal spring system, which creates a balance of contouring comfort and responsive support.
Will a king-size mattress fit any king-size bed frame?
Yes, UK king-size mattresses are designed to fit standard king-size bed frames, making them easy to pair with your existing setup.
Why shop for a medium-firm king-size mattress at Grove?
Our medium-firm king-size range covers a variety of mattress styles, making it easy to find a feel that suits your sleep. Free UK delivery and flexible payment options make ordering straightforward.



















