Product Description

The Simba Ultra King Mattress is designed with 11 layers of natural materials and advanced technology for exceptional comfort. It features 3,800 titanium alloy Aerocoil micro springs in the top layers, offering targeted pressure relief and reducing movement transfer. Below, 2,500 high carbon steel Aerocoil springs ensure maximum support and airflow. The FusionCool layer, a unique blend of kapok, wool, and bamboo, enhances freshness, while the dual Simbatex foam layers provide luxurious cushioning. The SupportCore base, with 1,000 pocketed springs, offers edge-to-edge support, and the breathable, removable cover with Stratos tech ensures easy care.

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Simba Hybrid Ultra 11 Layer King Mattress, Medium/Firm 

£1975£1775

Size:

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This item comes with a 10 year guarantee

200 Night Sleep Trial

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Simba

Award-winning Simba Sleep uses innovation and expertise to design high-tech, affordable mattresses, targeting the most common causes of poor sleep: overheating, aches and pains, and partner disturbance.

Aerocoil® Springs

Simba is the most five-star rated mattress brand in the world. Because their unique Hybrid® mattress technology is designed to feel perfectly comfortable to everyone, no matter their shape or sleeping style.

Simbatex® Foam

Simba’s innovative Simbatex® foam is cleverly designed to offer extra airflow compared to standard memory foam. On top of that their experts have infused it with graphite, a naturally occurring material that helps dissipate heat for a fresher sleep.

Hybrid® Ultra Highlights

  • Luxury, visionary design. More of our signature tech than ever before, combined with high-performance natural materials.
  • Optimum support   Our highest ever spring count of 7,300 springs offers more personalised contouring and supports pressure relief.
  • Spring count breakdown. Features 3,800 titanium alloy micro springs, 2,500 high carbon steel micro springs, 1,000 pocketed barrel springs
  • Cooler sleep.  Open-cell Simbatex® foam provides cooling airflow.
  • 100% edge-to-edge support.  SupportCore™ base prevents roll-off at the sides.
  • Breathable cover. Soft, knitted cover with zip-off top for washing or replacing.
  • Made in the UK.  With UK sourced materials, in zero-waste factories.
  • Customer Homes

    Dimensions & Details
    Width
    :
    150
    cm
    Depth
    :
    200
    cm
    Height
    :
    34
    cm
    Details
    Assembly
    Fully Assembled
    Materials
    This mattress combines a washable Stratos® top cover with wool, charcoal-infused bamboo, and kapok fibres for breathability. Graphite-infused Simbatex® foam, latex-coconut blend, and Aerocoil® springs provide responsive, zoned support.
    Feature or function
    The Simba Ultra features a meticulously designed top layer, combining breathable wool, airy bamboo, and moisture-resistant kapok—one of the lightest plant fibers on earth. With 80% air content, kapok enhances airflow for a fresher sleep experience.
    Mattress filling
    Designed for superior comfort, this mattress features 11 expertly crafted layers, including PureLift™, a latex and coconut blend for elasticity and responsive support. Two layers of Aerocoil® micro springs, arranged in 13 targeted zones.
    Mattress spring count
    This mattress features 7,300 springs, including Aerocoil® micro springs for pressure relief and airflow, plus a SupportCore™ base with pocketed barrel springs for edge-to-edge stability and lasting support.
    Mattress feature
    The Simba Ultra features an exclusive double layer of Simbatex®, a breathable, springy foam infused with graphite to enhance airflow and dissipate heat, ensuring a cooler, more refreshing sleep.
    Mattress firmness
    Experience the perfect balance of comfort and support with our medium-firm mattress, designed to provide just the right amount of softness while maintaining excellent spinal alignment.
    Manufacturer guarantee
    10 Years
    Please note
    Rotate mattress once a month for the first three months, then roughly every quarter of the year onwards. Mattress are vacuum packed for ease of delivery.
    Firmness
    Medium/Firm
    Care
    The removable top cover can be zipped off and machine washed at 40°C, ensuring easy freshness, while the base cover can be spot cleaned with a damp cloth for effortless maintenance.
    Disclaimer
    We're happy to accept returns for mattresses which are either unused and unopened, found to have a manufacturing defect, or returnable under the conditions of a supplier’s sleep trial or comfort guarantee offer.
    SKU
    ULMA1520MATT
    Delivery
    Delivery charge: FREE

    ●   This item will be delivered boxed.
    ●   If your item is in stock (or once it comes into stock), our trusted delivery partner will send you a tracking link with a delivery update after your order has been placed.
    ●   We deliver to UK Mainland only (this excludes Ireland, Northern Ireland and Islands).
    ●   There are some out of area postcodes where delivery may take a little longer, please see our delivery page for more information.
    ●   For hygiene reasons, mattresses and pillows can only be returned if they have been unused and unopened or have a manufacturer fault.
    Our locations

    13 stores found

    See in Store
    Gateshead

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Metro Park West, Gibside Way

    Gateshead, NE11 9XS

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 8:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 8:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Product available to view in store

    Metro Park West, Gibside Way

    Gateshead, NE11 9XS

    Closed Opens 10:00

    See in Store
    Guildford

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Ladymead

    Guildford, GU1 1DL

    Monday

    10:00am - 8:00pm

    Tuesday

    10:00am - 8:00pm

    Wednesday

    10:00am - 8:00pm

    Thursday

    10:00am - 8:00pm

    Friday

    10:00am - 8:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    Café
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Product available to view in store

    Ladymead

    Guildford, GU1 1DL

    Closed Opens 10:00

    See in Store
    Leeds

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Unit H, West Yorkshire Retail Park, Geldherd Road, Birstall

    Leeds, WF17 9AD

    Monday

    10:00am - 8:00pm

    Tuesday

    10:00am - 8:00pm

    Wednesday

    10:00am - 8:00pm

    Thursday

    10:00am - 8:00pm

    Friday

    10:00am - 8:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    lift
    Disabled Access
    Dog Friendly

    Product available to view in store

    Unit H, West Yorkshire Retail Park, Geldherd Road, Birstall

    Leeds, WF17 9AD

    Closed Opens 10:00

    See in Store
    Nottingham

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, 6 Giltbrook Retail Park, Ikea Way, Giltbrook

    Nottingham, NG16 2RP

    Monday

    10:00am - 8:00pm

    Tuesday

    10:00am - 8:00pm

    Wednesday

    10:00am - 8:00pm

    Thursday

    10:00am - 8:00pm

    Friday

    10:00am - 8:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    lift
    Disabled Access
    Dog Friendly

    Product available to view in store

    6 Giltbrook Retail Park, Ikea Way, Giltbrook

    Nottingham, NG16 2RP

    Closed Opens 10:00

    See in Store
    Fenwick Newcastle

    Open Closes at 8:00pm

    See more store information

    Floor 2, 39 Northumberland Street

    Newcastle, NE1 7AS

    Monday

    9:00am - 7:00pm

    Tuesday

    9:00am - 7:00pm

    Wednesday

    9:00am - 7:00pm

    Thursday

    9:00am - 8:00pm

    Friday

    9:00am - 7:00pm

    Saturday

    9:00am - 7:00pm

    Sunday

    10:30am - 5:00pm

    Features

    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Product available to view in store

    Floor 2, 39 Northumberland Street

    Newcastle, NE1 7AS

    Open Closes at 8:00pm

    See in Store
    Battersea

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, 100 York Road, Battersea

    London, SW11 3RD

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 6:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    100 York Road, Battersea

    London, SW11 3RD

    Closed Opens 10:00

    See in Store
    Hove

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, 184-186 Old Shoreham Road

    Hove, BN3 7EX

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 8:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    Café
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    184-186 Old Shoreham Road

    Hove, BN3 7EX

    Closed Opens 10:00

    See in Store
    Hull

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Junction Retail Park, St Andrew's Quay, Clive Sullivan Way

    Hull, HU3 4SE

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 6:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    lift
    Disabled Access
    Dog Friendly

    Not available to see in store

    Junction Retail Park, St Andrew's Quay, Clive Sullivan Way

    Hull, HU3 4SE

    Closed Opens 10:00

    See in Store
    Knaresborough

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Grimbald Crag Road, St. James Retail Park

    Knaresborough, HG5 8PY

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 6:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    Café
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    Grimbald Crag Road, St. James Retail Park

    Knaresborough, HG5 8PY

    Closed Opens 10:00

    See in Store
    Teesside Park

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Haydock Park Road, Teesside Retail Park

    Stockton-on-Tees, TS17 7BG

    Monday

    10:00am - 8:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 6:00pm

    Friday

    10:00am - 8:00pm

    Saturday

    10:00am - 6:00pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    Café
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    Haydock Park Road, Teesside Retail Park

    Stockton-on-Tees, TS17 7BG

    Closed Opens 10:00

    See in Store
    Darlington

    Closed Opens 10:00

    See more store information

    Barker & Stonehouse, Feethams

    Darlington, DL1 5RD

    Monday

    10:00am - 6:00pm

    Tuesday

    10:00am - 6:00pm

    Wednesday

    10:00am - 6:00pm

    Thursday

    10:00am - 6:00pm

    Friday

    10:00am - 6:00pm

    Saturday

    10:00am - 5:30pm

    Sunday

    11:00am - 5:00pm

    Features

    Parking
    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    Feethams

    Darlington, DL1 5RD

    Closed Opens 10:00

    See in Store
    Fenwick Kingston

    Open Closes at 9:00pm

    See more store information

    Floor 2, Wood Street

    Kingston Upon Thames, KT1 1TP

    Monday

    9:30am - 7:00pm

    Tuesday

    9:30am - 7:00pm

    Wednesday

    9:30am - 7:00pm

    Thursday

    9:30am - 9:00pm

    Friday

    9:30am - 7:00pm

    Saturday

    9:00am - 7:00pm

    Sunday

    10:30am - 5:00pm

    Features

    lift
    Disabled Access
    Baby Changing Facilities
    Dog Friendly

    Not available to see in store

    Floor 2, Wood Street

    Kingston Upon Thames, KT1 1TP

    Open Closes at 9:00pm

    See in Store
    Jarrolds

    Open Closes at 5:30pm

    See more store information

    1-11 London Street

    Norwich, NR2 1JF

    Monday

    9:30am - 5:00pm

    Tuesday

    9:30am - 5:00pm

    Wednesday

    9:30am - 5:00pm

    Thursday

    9:30am - 5:30pm

    Friday

    9:30am - 5:00pm

    Saturday

    9:30am - 6:00pm

    Sunday

    10:30am - 4:30pm

    Not available to see in store

    1-11 London Street

    Norwich, NR2 1JF

    Open Closes at 5:30pm

    Care information
    Warranty & Returns