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    Home Page Mattresses Super King Mattresses Firm Tension
    Firm Tension

    Firm Super King Mattresses

    For sleepers who prefer more support and plenty of space, our firm super king mattresses help maintain proper spinal alignment over an expansive sleeping area for a healthier night’s rest.

    Ideal for back or stomach sleepers, our super king firm mattresses come from trusted brands, such as Silentnight and Giltedge, all available with free UK delivery.

    Filters

    Price

    Size

    Small Single (2'6") (3) Small Single (2'6")
    Single (3'0") (14) Single (3'0")
    Small Double (4'0") (11) Small Double (4'0")
    Double (4'6") (14) Double (4'6")
    King Size (5'0") (14) King Size (5'0")
    Super King (6'0") (14) Super King (6'0")

    Manufacturer

    Baker & Wells (1) Baker & Wells
    Deepsleep Beds (1) Deepsleep Beds
    Enchanted House (1) Enchanted House
    Harrison Spinks (2) Harrison Spinks
    Silentnight (7) Silentnight
    Sluma (2) Sluma

    Delivery Speed

    Next Day (5) Next Day
    2 Days (3) 2 Days
    2 Weeks (4) 2 Weeks
    6 Weeks (2) 6 Weeks

    Mattress Core

    Continuous Coil (3) Continuous Coil
    Open Coil (2) Open Coil
    Pocket Springs (8) Pocket Springs

    Mattress Tension

    Firm (13) Firm
    Medium (1) Medium

    Mattress Fillings

    Airmesh™ Comfort Layer (1) Airmesh™ Comfort Layer
    Natural Fillings (5) Natural Fillings
    Polyester (1) Polyester
    Soft White Fillings (3) Soft White Fillings
    UltraGel™ layer (1) UltraGel™ layer

    Mattress Depth

    Average (5) Average
    Deep (8) Deep

    Care

    Non Turn (8) Non Turn
    Reversible (6) Reversible
    Filter icon Filters
    Showing all of 14 results
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    Deepsleep Mayfair Mattress

    Deepsleep Mayfair Mattress

    Our Price £199.95 inc. VAT
    Price £224.00 inc. VAT
    You Save £24.05 (11%)
    Open Coil Springs Polyester Blend 12 Months Guarantee Firm Tension 33cm / 13 Inches Deep
    Deepsleep Logo
    Delivery logo 2 Days Size Availability
    Sizes Available
    Price
    Stock
    Small Single (2'6")
    £199.95
    2 Days
    Single (3'0")
    £199.95
    2 Days
    Small Double (4'0")
    £229.95
    2 Days
    Double (4'6")
    £229.95
    2 Days
    King Size (5'0")
    £269.95
    2 Days
    Super King (6'0")
    £359.95
    2 Days
    Add to Basket
    Baker and Wells Ortho Supreme Pocket Mattress

    Baker and Wells Ortho Supreme Pocket Mattress

    Our Price £199.95 inc. VAT
    Price £249.00 inc. VAT
    You Save £49.05 (20%)
    1000 Pocket Springs Polyester Blend 3 Year Guarantee Firm Tension
    Baker & Wells
    Delivery logo Next Day Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £199.95
    Next Day
    Small Double (4'0")
    £249.95
    Next Day
    Double (4'6")
    £249.95
    Next Day
    King Size (5'0")
    £299.95
    Next Day
    Super King (6'0")
    £349.95
    Next Day
    Add to Basket
    Harrison Spinks Wildwood Bramble 2000 Mattress

    Harrison Spinks Wildwood Bramble 2000 Mattress

    Our Price £684.95 inc. VAT
    Price £819.00 inc. VAT
    You Save £134.05 (16%)
    2000 Pocket Springs Luxurious Natural Fillings 10 Year Warranty Medium Tension 23cm / 9 Inches Deep
    Harrison Spinks Logo
    Delivery logo 6 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £684.95
    6 Weeks
    Small Double (4'0")
    £944.95
    6 Weeks
    Double (4'6")
    £944.95
    6 Weeks
    King Size (5'0")
    £1,049.95
    6 Weeks
    Super King (6'0")
    £1,314.95
    6 Weeks
    Add to Basket
    Harrison Spinks Wildwood Acorn 1000 Mattress

    Harrison Spinks Wildwood Acorn 1000 Mattress

    Our Price £599.95 inc. VAT
    Price £719.00 inc. VAT
    You Save £119.05 (17%)
    1000 Pocket Springs Fillings Specification : Wool & Cotton 10 Year Warranty Firm Tension 23cm / 9 Inches Deep
    Harrison Spinks Logo
    Delivery logo 6 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £599.95
    6 Weeks
    Small Double (4'0")
    £834.95
    6 Weeks
    Double (4'6")
    £834.95
    6 Weeks
    King Size (5'0")
    £924.95
    6 Weeks
    Super King (6'0")
    £1,159.95
    6 Weeks
    Add to Basket
    Silentnight Elite Sage Miracoil Mattress

    Silentnight Elite Sage Miracoil Mattress

    Our Price £299.95 inc. VAT
    Price £429.00 inc. VAT
    You Save £129.05 (30%)
    Miracoil® Spring System Eco Comfort™ Fibre 5 Year Guarantee Firm Tension 27cm / 10˝ Inches Deep
    Silentnight Logo
    Delivery logo Next Day Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £299.95
    Next Day
    Small Double (4'0")
    £329.95
    Next Day
    Double (4'6")
    £370.00
    2 Weeks
    King Size (5'0")
    £379.95
    Next Day
    Super King (6'0")
    £429.95
    Next Day
    Add to Basket
    Silentnight Airmesh Air Support 2030 Mattress

    Silentnight Airmesh Air Support 2030 Mattress

    Our Price £479.95 inc. VAT
    Price £779.00 inc. VAT
    You Save £299.05 (38%)
    2000 Mirapocket® Springs Eco Comfort™ Fibre 5 Year Guarantee Firm Tension 32cm / 12˝ Inches Deep
    Silentnight Logo
    Delivery logo Next Day Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £479.95
    Next Day
    Double (4'6")
    £629.95
    Next Day
    King Size (5'0")
    £749.95
    Next Day
    Super King (6'0")
    £1,080.00
    2 Weeks
    Add to Basket
    Sluma Hibernia Ortho Mattress
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    Sluma Hibernia Ortho Mattress

    Our Price £209.95 inc. VAT
    Price £221.00 inc. VAT
    You Save £11.05 (5%)
    TRY ME INSTORE TODAY
    Open Coil Springs Polyester Blend 12 Months Guarantee Firm Tension 25cm / 10 Inches Deep
    Sluma Logo
    Delivery logo 2 Days Size Availability
    Sizes Available
    Price
    Stock
    Small Single (2'6")
    £209.95
    2 Days
    Single (3'0")
    £209.95
    2 Days
    Small Double (4'0")
    £259.95
    2 Days
    Double (4'6")
    £259.95
    2 Days
    King Size (5'0")
    £299.95
    2 Days
    Super King (6'0")
    £399.95
    2 Days
    Add to Basket
    Sluma Britannia 1500 Mattress
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    Sluma Britannia 1500 Mattress

    Our Price £299.95 inc. VAT
    Price £322.00 inc. VAT
    You Save £22.05 (7%)
    TRY ME INSTORE TODAY
    1500 Pocket Springs Polyester Blend 12 Months Guarantee Firm Tension 25cm / 10 Inches Deep
    Sluma Logo
    Delivery logo 2 Days Size Availability
    Sizes Available
    Price
    Stock
    Small Single (2'6")
    £299.95
    2 Days
    Single (3'0")
    £299.95
    2 Days
    Small Double (4'0")
    £339.95
    2 Days
    Double (4'6")
    £339.95
    2 Days
    King Size (5'0")
    £389.95
    2 Days
    Super King (6'0")
    £519.95
    2 Days
    Add to Basket
    Enchanted House Spreyton 1000 Mattress
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    Enchanted House Spreyton 1000 Mattress

    Our Price £649.95 inc. VAT
    Price £939.00 inc. VAT
    You Save £289.05 (31%)
    TRY ME INSTORE TODAY
    1000 Pocket Springs Luxurious Natural Fillings Firm Tension 23cm / 9 Inches Deep
    Enchanted House Logo
    Delivery logo Next Day Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £649.95
    Next Day
    Double (4'6")
    £799.95
    Next Day
    King Size (5'0")
    £949.95
    Next Day
    Super King (6'0")
    £1,099.95
    5 Weeks
    Add to Basket
    Silentnight UltraGel 1400 Pocket Mattress
    TRY ME INSTORE TODAY

    Silentnight UltraGel 1400 Pocket Mattress

    Our Price £599.95 inc. VAT
    Price £819.00 inc. VAT
    You Save £219.05 (27%)
    TRY ME INSTORE TODAY
    Core Specification : 1400 Mirapocket® Springs Gel 5 Year Guarantee Firm Tension 29cm / 11 Inches Deep
    Silentnight Logo
    Delivery logo 2 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £599.95
    2 Weeks
    Small Double (4'0")
    £799.95
    2 Weeks
    Double (4'6")
    £799.95
    2 Weeks
    King Size (5'0")
    £949.95
    2 Weeks
    Super King (6'0")
    £1,149.95
    2 Weeks
    Add to Basket
    Silentnight Elite Luxuriant Natural Pocket 1400 Mattress
    TRY ME INSTORE TODAY

    Silentnight Elite Luxuriant Natural Pocket 1400 Mattress

    Our Price £549.95 inc. VAT
    Price £769.00 inc. VAT
    You Save £219.05 (28%)
    TRY ME INSTORE TODAY
    1400 Pocket Springs Fillings Specification : Silk, Cashmere & Wool 5 Year Guarantee Firm Tension 28cm / 11 Inches Deep
    Silentnight Logo
    Delivery logo Next Day Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £549.95
    Next Day
    Small Double (4'0")
    £699.95
    Next Day
    Double (4'6")
    £699.95
    2 Weeks
    King Size (5'0")
    £849.95
    Next Day
    Super King (6'0")
    £949.95
    Next Day
    Add to Basket
    Silentnight Allegro Natural Pocket 1400 Mattress

    Silentnight Allegro Natural Pocket 1400 Mattress

    Our Price £500.00 inc. VAT
    Price £719.00 inc. VAT
    You Save £219.00 (30%)
    Core Specification : 1400 Mirapocket® Springs Natural Wool 5 Year Guarantee Firm Tension 33cm / 13 Inches Deep
    Silentnight Logo
    Delivery logo 2 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £500.00
    2 Weeks
    Double (4'6")
    £640.00
    2 Weeks
    King Size (5'0")
    £780.00
    2 Weeks
    Super King (6'0")
    £880.00
    2 Weeks
    Add to Basket
    Silentnight Rio Miracoil Cushion Top Mattress

    Silentnight Rio Miracoil Cushion Top Mattress

    Our Price £270.00 inc. VAT
    Price £389.00 inc. VAT
    You Save £119.00 (31%)
    Miracoil® Spring System Fillings Specification : EcoComfort Fibre® 5 Year Guarantee Firm Tension 24cm / 9˝ Inches Deep
    Silentnight Logo
    Delivery logo 2 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £270.00
    2 Weeks
    Small Double (4'0")
    £365.00
    2 Weeks
    Double (4'6")
    £365.00
    2 Weeks
    King Size (5'0")
    £434.00
    2 Weeks
    Super King (6'0")
    £515.00
    2 Weeks
    Add to Basket
    Silentnight Amsterdam Miracoil Mattress

    Silentnight Amsterdam Miracoil Mattress

    Our Price £300.00 inc. VAT
    Price £429.00 inc. VAT
    You Save £129.00 (30%)
    Miracoil® Spring System Fillings Specification : EcoComfort Fibre® 5 Year Guarantee Firm Tension 24cm / 9˝ Inches Deep
    Silentnight Logo
    Delivery logo 2 Weeks Size Availability
    Sizes Available
    Price
    Stock
    Single (3'0")
    £300.00
    2 Weeks
    Small Double (4'0")
    £400.00
    2 Weeks
    Double (4'6")
    £400.00
    2 Weeks
    King Size (5'0")
    £460.00
    2 Weeks
    Super King (6'0")
    £5,560.00
    2 Weeks
    Add to Basket
    Showing all of 14 results
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    Custom Size Mattresses

    If you have an antique bed frame or a custom made bed, you may find that it is outside the normal dimensions of a super king (6'0" x 6'6" / 180cm x 200cm). If you need an unusual size or shape mattress, use our custom mattress builder for a bespoke order to your measurements and preferred firmness.  

    Super King Beds

    Whether you’re looking for a bed frame or divan base, we have the perfect compliment to your new mattress. We also offer a whole range of divan sets if you would like to buy your bed and mattress all together.

    What Our Customers Have To Say About Us

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    Call one of our sleep experts on 01642 613684 01642 613684
    Or email us at sales@linthorpebeds.co.uk

    Our Stores

    Stockton Store Location
    Portrack Lane Stockton-On-Tees, TS18 2RB Tel: 01642 602160 Tel: 01642 602160
    Darlington Store Location
    Russell Street Darlington, DL1 1PT Tel: 01325 351477 Tel: 01325 351477

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    Our sales staff are trained through the Sleep Council Sales Academyy
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