16%OFF
Rock Mattress (25cm)
Premium High Density Reflex Foam
Meet The Rock: an extra-firm, supportive mattress built for sleepers who want a steadier feel, stronger spinal alignment, and a cleaner sleep surface. Crafted with high-density reflex foam to hold its shape night after...
£840
£1,008
Save 16%
- Free UK mainland delivery
- 5-year guarantee
- Handmade in Yorkshire
- Try it in our showroom
Handmade to order in our Liversedge workshop — we confirm your delivery date when you order.
Why you'll love it
Hand-tufted in Yorkshire, built around how you actually sleep.
Extra-firm comfort
for a stable, supported feel
High-density reflex foam core
designed to retain shape and support
Spinal alignment focused
for confident, level sleep
Anti-bacterial treatment
for a fresher, more hygienic bed
What's inside
Every layer, hand-built for support and comfort.
- Breathable knitted coveranti-bacterial
- High-density reflex foam coreholds its shape
Support and comfort, in the right order
- Extra-firm comfort for a stable, supported feel
- High-density reflex foam core designed to retain shape and support
- Spinal alignment focused for confident, level sleep
- Anti-bacterial treatment for a fresher, more hygienic bed
- Breathable knitted cover for comfortable, everyday sleep
Is it right for you?
A firm – extra firm feel — very firm, ultra-stable, minimal give.
Firmness: Firm – Extra Firm 8–10/10
Firm – Extra Firm suits front sleepers, heavier bodyweights and anyone who wants minimal sink. Prefer a different feel? Filter by firmness on our mattresses page.
Best for
- Very firm preference
- Heavier bodyweights
- Stomach sleepers
- Those who hate sink
Full specification
Construction & materials
- Type
- Premium High Density Reflex Foam
- Support system
- High-density reflex foam core
- Cover
- Breathable knitted cover, anti-bacterial
- Firmness
- Firm – Extra Firm (8–10/10)
- Feel
- Very firm, ultra-stable, minimal give
- Made in
- Liversedge, West Yorkshire
Sizes & dimensions
- Bunk
- £480
- Single 2.6ft - 3ft
- 75 or 90 × 190 cm · £480
- Small Double 4 ft
- 120 × 190 cm · £640
- Double 4.6ft
- 135 × 190 cm · £640
- King 5ft
- 150 × 200 cm · £730
- Super King 6ft
- 180 × 200 cm · £840
Delivery, guarantee & care
Free delivery to UK mainland addresses. Every mattress is handmade to order, so we confirm your delivery date when you order.
Covered by our 5-year guarantee against manufacturing defects. Rotate head-to-toe every few weeks for the first three months, then every three months, and use a mattress protector to keep it fresh.
Full details: Shipping & Delivery · Returns.
Compare with our other mattresses
Not quite right? These are popular alternatives.
Questions, answered
How firm is the Rock Mattress (25cm)?
It's firm – extra firm — 8 to 10 on our 10-point scale, with a very firm, ultra-stable, minimal give feel. It suits front sleepers, heavier bodyweights and anyone who wants minimal sink.
How long will delivery take?
Every Rock Mattress (25cm) is handmade to order in our Liversedge workshop, so we confirm your delivery date when you order. Delivery is free to UK mainland addresses — see our Shipping & Delivery Policy for details.
Can I return it if it's not right?
Please see our Returns Policy for the full terms, including how returns work for made-to-order mattresses. If you're unsure, visit our showroom first and try every firmness.
Is it good for couples?
It suits couples who agree on a firm – extra firm feel. If one of you moves a lot at night, our pocket-sprung mattresses do the most to reduce partner disturbance.