Is this firm mattress compatible with slatted bed frames?

Yes. It performs flawlessly on solid platform divan bases, ottoman bed boxes, and slatted bed frames. Ensure slat gaps do not exceed 7.5cm (3 inches).

Does this mattress provide edge-to-edge support without side sagging?

Yes. Heavy-duty rod edging and perimeter bracing prevent side dips when sitting or sleeping close to the perimeter, expanding total usable sleeping space.

What is the recommended turning and rotation schedule?

This is a durable dual-sided mattress. Rotate head-to-toe every 4 weeks for the first 3 months, then alternate flipping and rotating quarterly to maintain even density.

How does delivery and room placement work?

Every mattress includes free mainland UK two-person delivery. Our delivery team carries the mattress upstairs directly into your chosen bedroom.

Is the Firm Mattress available for delivery across the UK?

Yes. We deliver the Firm Mattress across the UK mainland with free delivery. Delivery is scheduled with you directly - we'll contact you to arrange a convenient date.

Which sizes does the Firm Mattress come in?

This mattresses is available in: Small Single (2'6"), Single (3'0"), Small Double (4'0"), Double (4'6"), King Size (5'0"), Super King (6'0"). Choose your size from the options above to see the latest price.

Do you offer assembly for the Firm Mattress?

Assembly is optional at checkout. Choose 'With Fitting' and our team will unpack, assemble, and remove packaging for you.

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About This Product

The Firm Mattress delivers rigid orthopaedic spine alignment and pressure-relieving posture support for UK front and back sleepers. Handcrafted in the UK using high-resilience bonded reflex foam cores combined with a heavy-gauge 12.5 Bonnell steel coil system, it prevents excessive sinking while actively supporting the lower lumbar and pelvic regions. High-density foam encapsulation reinforces each perimeter edge to stop mattress dip and roll-off. Finished with a breathable, hypoallergenic knitted damask cover that dissipates excess sleep heat, it maintains shape and tension over years of nightly use. Fully tested and compliant with British BS7177 flammability regulations, each mattress includes free nationwide two-person mainland delivery directly into your doorstep/ground-floor.

Key Features:

Extra firm support level
High-density foam layers
Excellent edge support
Durable construction
Ideal for stomach sleepers
Maintains shape over time

Standard UK Bed Dimensions & Specifications

Standard UK Sizing: All bed frames and bases are handcrafted to standard UK mattress and room dimensions. Measurements are approximate and may vary slightly depending on upholstery and headboard profile.

Custom Technical Specifications

Spring Count: Heavy-gauge 12.5 Bonnell open-coil system with high-density reflex core

Firmness Rating: Extra Firm (rated 9/10 for strict orthopaedic spine alignment)

Mattress Depth: 25 cm (approx 10 inches) dense supportive profile

Comfort Fillings: Hypoallergenic bonded reflex foam cushioning and anti-allergy polyester pad

Edge Support: Reinforced boundary wire rod edge and heavy-duty corner supports

Turn Cycle: Dual-sided reversible design; rotate head-to-toe and flip periodically

Fire Safety Standard: Tested & certified fully compliant with BS7177 Low Hazard domestic flammability

Standard UK Size	Imperial (Feet/Inches)	Length (cm)	Width (cm)
Small Single	2'6" x 6'3"	190 cm	75 cm
Single	3'0" x 6'3"	190 cm	90 cm
Small Double	4'0" x 6'3"	190 cm	120 cm
Double	4'6" x 6'3"	190 cm	135 cm
King Size	5'0" x 6'6"	200 cm	150 cm
Super King	6'0" x 6'6"	200 cm	180 cm

White-Glove doorstep/ground-floor UK Delivery & Assembly FAQ

We offer FREE nationwide UK mainland delivery. All bed frames and mattresses are dispatched directly from our Yorkshire manufacturing workshop with tracked delivery.

doorstep/ground-floor Delivery

Dedicated delivery driver delivers directly to your doorstep. doorstep/ground-floor upgrade available at checkout.

Professional Assembly Service

Select assembly at checkout. Our technicians unpack, assemble the frame/gas-lift base, and take away all packaging for recycling.

Fabric & Upholstery Care Guide

Keeping your handcrafted British bed in pristine condition

Crushed Velvet

Deep, shimmering pile that adds glamour. Lightly vacuum with a soft brush attachment weekly. Blot spills immediately with a clean dry microfibre cloth; never scrub.

Dry Sponge or Velvet Brush

Plush Velvet

Ultra-soft matte finish with high stain resistance. Regular gentle brushing maintains nap direction. For marks, use mild soapy warm water on a damp cloth without soaking.

Gentle Damp Dab

Linen & Textured Weave

Breathable, contemporary, durable weave. Vacuum regularly to prevent dust accumulation. Spot clean with upholstery shampoo or distilled water to prevent water rings.

Upholstery Safe Cleaner

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Firm Mattress UK | Buy Firm Mattresses Online | Extra Support | Free Delivery

Firm Mattress UK | Buy Firm Mattresses Online | Extra Support | Free Delivery