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King Size Mattresses - Medium Firm (5')

All the mattresses in this section are a UK Standard King size
5' x 6'6" / 150cm x 200cm and rated as MEDIUM FIRM.

Firmness rating of medium firm is based on an average weight of 10
stone (140lb, ~65kg) and is subjective.
 

Review Score 93% based on 49 review(s)
Our Medium Firm King Size Mattresses have earned an aggregate score of
4.7 out of 5.0 based on 49 customer reviews.
We have 53 Medium Firm King Size Mattresses to choose from ranging from £124.99 to £739.99 all with Free Delivery!
Luxury King Size Mattress
Luxury King Size Mattress
RRP £219.99
  Layer of High Density Base Foam
  Layer of Memory Foam
  Anti-bacterial
124.99
Save: £95.00 - (43%)
FREE Next Working Day delivery available on this Luxury King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 15cm
Foam 125mm
Memory Foam
Hypo-Allergenic
Sareer Orthopaedic King Size Mattress
Sareer Orthopaedic King Size Mattress
Bestseller!
 Reviewed (5.0/5.0)Review Score 100% based on 4 review(s)
RRP £179.99
  Open coil spring unit
  Quilted panel and border
  Damask fabric cover
129.99
Save: £50.00 - (28%)
FREE Next Working Day delivery available on this Sareer Orthopaedic King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 20cm
Professional Workmanship
Great Value
Popular Product
Sareer Orthopaedic Memory King Size Mattress
Sareer Orthopaedic Memory King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 1 review(s)
RRP £199.99
  12mm memory foam
  Open coil spring unit
  Back support
139.99
Save: £60.00 - (30%)
FREE Next Working Day delivery available on this Sareer Orthopaedic Memory King Size Mattress dependent on postcode.
Medium/Firm
Memory Foam
Mattress Depth: 24cm
Popular Product
Great Value
Orthorest King Size Mattress
Orthorest King Size Mattress
RRP £219.99
  Totally hypoallergenic fillings
  Deep quilted mattress
149.99
Save: £70.00 - (32%)
You can book you delivery date during checkout on this product.
Medium/Firm
Hypo-Allergenic
Popular Product
1 Year Guarantee
Great Value
Reflex Plus Coil King Size Mattress
Reflex Plus Coil King Size Mattress
RRP £199.99
  Open coil spring unit
  1 inch reflex foam
  Tufted
149.99
Save: £50.00 - (25%)
FREE Next Working Day delivery available on this Reflex Plus Coil King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Professional Workmanship
Foam
Popular Product
Oxford King Size Mattress
Oxford King Size Mattress
RRP £269.99
  12.5g Orthopaedic unit
  6 Gauge frame
  No turn mattress
159.99
Save: £110.00 - (41%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 22cm
Professional Workmanship
No Turn
Great Value
Sussex King Size Mattress
Sussex King Size Mattress
Bestseller!
 Reviewed (4.3/5.0)Review Score 87% based on 3 review(s)
RRP £235.99
  Luxury fillings
  Hand tufted for even support
159.99
Save: £76.00 - (32%)
FREE Next Working Day delivery available on this Sussex King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 25cm
Great Value
1 Year Guarantee
Popular Product
Ashleigh King Size Mattress
Ashleigh King Size Mattress
RRP £249.99
  Hand tufted damask
  12.5 gauge springs
  Medium-firm feel
169.99
Save: £80.00 - (32%)
FREE Delivery within 21 working days
Medium/Firm
Mattress Depth: 20cm
Popular Product
Low Foot End
Great Value
Neptune Luxury King Size Mattress
Neptune Luxury King Size Mattress
RRP £299.99
  50mm Layer of Memory Foam
  150mm Layer of Memory Foam
  Hypoallergenic
184.99
Save: £115.00 - (38%)
FREE Next Working Day delivery available on this Neptune Luxury King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 20cm
Memory Foam
Foam 150mm
Hypo-Allergenic
Derby King Size Mattress
Derby King Size Mattress
RRP £289.99
  12.5g Active support bonnell unit
  Rod edge
  Quality damask
189.99
Save: £100.00 - (34%)
FREE Delivery within 7 working days
Medium/Firm
Mattress Depth: 24cm
Professional Workmanship
Great Value
Popular Product
Pluto King Size Mattress
Pluto King Size Mattress
 Reviewed (2.5/5.0)Review Score 50% based on 2 review(s)
RRP £319.99
  150mm of Reflex Foam
  70mm of Memory Foam
  Hypoallergenic
189.99
Save: £130.00 - (41%)
FREE Next Working Day delivery available on this Pluto King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Foam 150mm
Memory Foam 70mm
Hypo-Allergenic
Avalon King Size Mattress
Avalon King Size Mattress
RRP £299.99
  Up to 800 pocket springs
  Soft knit easy touch
  Hypo-allergenic fillings
199.99
Save: £100.00 - (33%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 23cm
Hypo-Allergenic
No Turn
Pocket Sprung
Cambridgeshire King Size Mattress
Cambridgeshire King Size Mattress
 Reviewed (4.0/5.0)Review Score 80% based on 1 review(s)
RRP £314.99
  High loft 12" mattress
  Hand tufted for even support
  High quality Belgian damask
199.99
Save: £115.00 - (37%)
FREE Next Working Day delivery available on this Cambridgeshire King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 30cm
Made in the UK
1 Year Guarantee
Popular Product
Kensington King Size Mattress
Kensington King Size Mattress
RRP £299.99
  Up to 1200 pocket springs
  Damask fabric cover
  Manufactured in the UK
199.99
Save: £100.00 - (33%)
FREE Next Working Day delivery available on this Kensington King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 23cm
Pocket Sprung
Great Value
Made in the UK
Sleepwalk Trizone Gold King Size Mattress
Sleepwalk Trizone Gold King Size Mattress
RRP £299.99
  Trizone (3 phase support) spring unit
  Soft white polyester fillings
  No turn mattress
199.99
Save: £100.00 - (33%)
FREE Next Working Day delivery available on this Sleepwalk Trizone Gold King Size Mattress dependent on postcode.
Medium/Firm
Pocket Sprung
Popular Product
No Turn
Great Value
Turin King Size Mattress
Turin King Size Mattress
RRP £299.99
  Comfort rating
  Modern look
  No turn mattress
199.99
Save: £100.00 - (33%)
FREE Next Working Day delivery available on this Turin King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 23cm
No Turn
Made in the UK
Great Value
Visco Bonnell King Size Mattress
Visco Bonnell King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 1 review(s)
RRP £342.99
  2" V60 memory foam
  Soft fabric
199.99
Save: £143.00 - (42%)
FREE Next Working Day delivery available on this Visco Bonnell King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 25cm
Memory Foam
Great Value
Made in the UK
Buckingham King Size Mattress
Buckingham King Size Mattress
RRP £342.99
  Pocket spring unit
  Soft stretch fabric
  Hand tufted
209.99
Save: £133.00 - (39%)
FREE Next Working Day delivery available on this Buckingham King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 24cm
Pocket Sprung
Made in the UK
Great Value
Huston King Size Mattress
Huston King Size Mattress
RRP £319.99
  12.5 Active Support Bonnell Unit
  Rod edge
  Foam and superbond fillings
209.99
Save: £110.00 - (34%)
FREE Delivery within 7 working days
Medium/Firm
Mattress Depth: 24cm
Professional Workmanship
Popular Product
Great Value
Percussion King Size Mattress
Percussion King Size Mattress
RRP £329.99
  Firm 12.5 gauge springs
  Firm fillings
  Traditionally tufted
224.99
Save: £105.00 - (32%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 27cm
Popular Product
Made in the UK
1 Year Guarantee
Sareer Cool Blue Pocket Memory King Size Mattress
Sareer Cool Blue Pocket Memory King Size Mattress
RRP £299.99
  Pocket spring unit
  12.5mm layer of Blue Cool memory foam
  Tufted mattress
209.99
Save: £90.00 - (30%)
FREE Next Working Day delivery available on this Sareer Cool Blue Pocket Memory King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Pocket Sprung
Memory Foam
Great Value
Sareer Pocket Memory King Size Mattress
Sareer Pocket Memory King Size Mattress
RRP £299.99
  Pocket spring unit
  12.5mm layer of memory foam
  Damask stretch fabric cover
209.99
Save: £90.00 - (30%)
FREE Next Working Day delivery available on this Sareer Pocket Memory King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Pocket Sprung
Memory Foam
Popular Product
Sareer Pocket Sprung King Size Mattress
Sareer Pocket Sprung King Size Mattress
RRP £289.99
  Pocket spring unit
  Damask fabric cover
  Tufted
209.99
Save: £80.00 - (28%)
FREE Next Working Day delivery available on this Sareer Pocket Sprung King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 20cm
Pocket Sprung
Great Value
Popular Product
DuraBeds Knightsbridge King Size Mattress
DuraBeds Knightsbridge King Size Mattress
RRP £329.99
  12.5 gauge springs
  High loft mattress
  Medium-fim level of support
219.99
Save: £110.00 - (33%)
FREE Delivery within 21 working days
Medium/Firm
Popular Product
Great Value
Mattress Depth: 20cm
Henley King Size Mattress
Henley King Size Mattress
RRP £299.99
  10" deep mattress
  Hand tufted
219.99
Save: £80.00 - (27%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 26cm
Professional Workmanship
Great Value
Popular Product
Bronze 600 King Size Mattress
Bronze 600 King Size Mattress
RRP £328.99
  Luxurious Belgian damask fabric
  600 Pocket spring system
  Winter and summer side option
229.99
Save: £99.00 - (30%)
You can book you delivery date during checkout on this product.
Medium/Firm
Pocket Sprung
Professional Workmanship
Popular Product
Great Value
Deep Sleep Bronze 1500 King Size Mattress
Deep Sleep Bronze 1500 King Size Mattress
Bestseller!
 Reviewed (4.7/5.0)Review Score 94% based on 10 review(s)
RRP £376.99
  1500 Pocket Spring
  Luxurious fillings
  Wool Tufts
229.99
Save: £147.00 - (39%)
FREE Next Working Day delivery available on this Deep Sleep Bronze 1500 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 26cm
1500+ Pocket Springs
Popular Product
Great Value
Wise Choice Richmond King Size Mattress
Wise Choice Richmond King Size Mattress
RRP £349.99
  12.5 Bonnell unit
  25mm Memory foam
  50mm high density foam
229.99
Save: £120.00 - (34%)
FREE Delivery within 7 working days
Medium/Firm
Mattress Depth: 24cm
Memory Foam
Popular Product
Great Value
Leyburn King Size Mattress
Leyburn King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 1 review(s)
RRP £359.99
  13.5 Bonnell unit
  25mm Vasco 50 Memory foam
  50mm high density foam
239.99
Save: £120.00 - (33%)
FREE Delivery within 7 working days
Medium/Firm
Mattress Depth: 24cm
Memory Foam
Popular Product
Great Value
Harp King Size Mattress
Harp King Size Mattress
RRP £379.99
  Firm 12.5 gauge springs
  Luxury high loft mattress top
  Microquilted damask mattress cover
269.99
Save: £110.00 - (29%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 26cm
Popular Product
Made in the UK
1 Year Guarantee
Sareer Gel Pocket King Size Mattress
Sareer Gel Pocket King Size Mattress
RRP £349.99
  1,200 Pocket springs
  12.5mm Gel-lex layer
  Tufted mattress
249.99
Save: £100.00 - (29%)
FREE Next Working Day delivery available on this Sareer Gel Pocket King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Pocket Sprung
Professional Workmanship
Great Value
Sareer Latex Pocket King Size Mattress
Sareer Latex Pocket King Size Mattress
RRP £349.99
  Pocket spring unit
  12.5mm latex layer
  Tufted mattress
249.99
Save: £100.00 - (29%)
FREE Next Working Day delivery available on this Sareer Latex Pocket King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 22cm
Pocket Sprung
Latex Foam
Great Value
Viscofoam 250 King Size Mattress
Viscofoam 250 King Size Mattress
 Reviewed (4.2/5.0)Review Score 85% based on 4 review(s)
RRP £295.99
  2.5cm visco-elastic memory foam
  17.5cm stiffened reflex foam
  Promotes blood circulation
249.99
Save: £46.00 - (16%)
FREE Next Working Day delivery available on this Viscofoam 250 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 20cm
Memory Foam
Foam
Made in the UK
Overture King Size Mattress
Overture King Size Mattress
RRP £399.99
  Up to 1000 pocket springs
  Firm fillings
  Damask cover
279.99
Save: £120.00 - (30%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 24cm
No Turn
2000+ Pocket Springs
Made in the UK
Viscofoam 500 King Size Mattress
Viscofoam 500 King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 3 review(s)
RRP £305.99
  5cm visco-elastic memory foam
  15cm stiffened reflex foam
  Promotes blood circulation
259.99
Save: £46.00 - (15%)
FREE Next Working Day delivery available on this Viscofoam 500 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 20cm
Memory Foam 50mm
Foam 150mm
Made in the UK
Deep Sleep Viscount King Size Mattress
Deep Sleep Viscount King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 4 review(s)
RRP £449.99
  2" V60 memory foam
  1000 Pocket spring unit
  TENCEL Mattress Cover
269.99
Save: £180.00 - (40%)
FREE Next Working Day delivery available on this Deep Sleep Viscount King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 24cm
Memory Foam
1000+ Pocket Springs
No Turn
Gold 1000 King Size Mattress
Gold 1000 King Size Mattress
RRP £399.99
  1000 Pocket spring system
  Quality wool and polyester fillings
  Winter and summer side option
269.99
Save: £130.00 - (33%)
You can book you delivery date during checkout on this product.
Medium/Firm
1000+ Pocket Springs
Professional Workmanship
Popular Product
Great Value
Imperial King Size Mattress
Imperial King Size Mattress
RRP £529.99
  Up to 1200 pocket springs
  Made in the UK
  Suitable for all base types
269.99
Save: £260.00 - (49%)
FREE Next Working Day delivery available on this Imperial King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 23cm
Great Value
Pocket Sprung
Made in the UK
Splendour 1500 King Size Mattress
Splendour 1500 King Size Mattress
RRP £399.99
  1500 pocket unit
  Totally hypoallergenic
  Flag stitch handles and vents
269.99
Save: £130.00 - (33%)
FREE Next Working Day delivery available on this Splendour 1500 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 24cm
1500+ Pocket Springs
Hypo-Allergenic
Popular Product
Supreme 1000 King Size Mattress
Supreme 1000 King Size Mattress
Bestseller!
 Reviewed (4.9/5.0)Review Score 98% based on 7 review(s)
RRP £449.99
  50mm of V60 memory foam
  Pocket spring unit
  Stretch fabric
269.99
Save: £180.00 - (40%)
FREE Next Working Day delivery available on this Supreme 1000 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 24cm
Pocket Sprung
Foam 50mm
No Turn
Gel Feel 300 King Size Mattress
Gel Feel 300 King Size Mattress
RRP £449.99
  Gel Feel pad
  Quality soft knit fabric
  High density foam
289.99
Save: £160.00 - (36%)
You can book you delivery date during checkout on this product.
Medium/Firm
Foam
Mattress Depth: 20cm
No Turn
Hypo-Allergenic
Latex Paedic King Size Mattress
Latex Paedic King Size Mattress
RRP £449.99
  Natural Talalay latex foam layer
  Natural Touch fabric
  5 Year Guarantee
299.99
Save: £150.00 - (33%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 26cm
Latex Foam
Popular Product
5 Year Guarantee
Deep Sleep Platinum 2000 King Size Mattress
Deep Sleep Platinum 2000 King Size Mattress
Bestseller!
 Reviewed (4.5/5.0)Review Score 90% based on 6 review(s)
RRP £488.99
  2" V60 memory foam
  2000 Pocket spring unit
  Box Pillow top mattress
309.99
Save: £179.00 - (37%)
FREE Next Working Day delivery available on this Deep Sleep Platinum 2000 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 24cm
2000+ Pocket Springs
No Turn
Made in the UK
Cool 70 King Size Mattress
Cool 70 King Size Mattress
RRP £479.99
  3 inches of cooling memory foam
  5 inches of reflex foam
  No turn mattress
329.99
Save: £150.00 - (31%)
FREE Next Working Day delivery available on this Cool 70 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 25cm
Memory Foam
Made in the UK
5 Year Guarantee
Luxury Pocket 1000 King Size Mattress
Luxury Pocket 1000 King Size Mattress
RRP £479.99
  Up to 1000 pocket springs
  Memory foam
  Made in the UK
329.99
Save: £150.00 - (31%)
FREE Next Working Day delivery available on this Luxury Pocket 1000 King Size Mattress dependent on postcode.
Medium/Firm
Mattress Depth: 23cm
Memory Foam
Pocket Sprung
Made in the UK
Rhapsody Gel Feel King Size Mattress
Rhapsody Gel Feel King Size Mattress
 Reviewed (5.0/5.0)Review Score 100% based on 1 review(s)
RRP £499.99
  Gel Feel pad
  Tufted by hand
  1000 pocket spring unit
329.99
Save: £170.00 - (34%)
You can book you delivery date during checkout on this product.
Medium/Firm
1000+ Pocket Springs
Mattress Depth: 26cm
No Turn
Hypo-Allergenic
Windsor Memory 1000 King Size Mattress
Windsor Memory 1000 King Size Mattress
RRP £599.99
  70mm memory foam
  1000 heat treated pocket spring
  Blu Cool Memory Foam
359.99
Save: £240.00 - (40%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 27cm
Memory Foam 70mm
Durable
Great Value
Emperor Latex 1500 King Size Mattress
Emperor Latex 1500 King Size Mattress
RRP £649.99
  Natural Talalay latex foam layer
  1500 heat treated pocket spring
  5 Year Guarantee
429.99
Save: £220.00 - (34%)
Delivery direct from Vogue with 7-10 working days
Medium/Firm
Mattress Depth: 26cm
Latex Foam
Pocket Sprung
Popular Product
Hypo Allergenic Superior 2000 King Size Mattress
Hypo Allergenic Superior 2000 King Size Mattress
RRP £659.99
  Pocketed springs
  Hypo-allergenic
  Damask fabric
459.99
Save: £200.00 - (30%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 23cm
2000+ Pocket Springs
Hypo-Allergenic
Made in the UK
Natural Superior 3000 King Size Mattress
Natural Superior 3000 King Size Mattress
 Reviewed (4.0/5.0)Review Score 80% based on 1 review(s)
RRP £779.99
  Pocket springs
  Medium/firm feel
  No turn - easy care
549.99
Save: £230.00 - (29%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 25cm
3000+ Pocket Springs
No Turn
Made in the UK
Latex Superior 2000 King Size Mattress
Latex Superior 2000 King Size Mattress
RRP £869.99
  Pocket springs
  Latex Layer
  No turn
619.99
Save: £250.00 - (29%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 24cm
2000+ Pocket Springs
Memory Foam 50mm
No Turn
Memory Superior 2000 King Size Mattress
Memory Superior 2000 King Size Mattress
RRP £899.99
  Pocket springs
  Memory foam layer
  No turn
649.99
Save: £250.00 - (28%)
You can book you delivery date during checkout on this product.
Medium/Firm
Mattress Depth: 28cm
2000+ Pocket Springs
Memory Foam 50mm
No Turn
Salus Viscoool 1500 King Size Mattress
Salus Viscoool 1500 King Size Mattress
RRP £829.99
  Up to 1500 pocket springs
  40mm Viscoool foam
  High density foam support layer
739.99
Save: £90.00 - (11%)
FREE Delivery within 14 working days
Medium/Firm
Mattress Depth: 28cm
Foam
Pocket Sprung
Made in the UK
Bestsellers - Medium Firm King Size Mattresses    Check out these bestsellers.


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