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Rated Excellent
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Duette Hybrid Pro 4000 Pocket Spring Foam Mattress

4.8 star review
4.8 (4 reviews)
£449 Was £449 RRP £569
RRP £569
£120 below RRP
or make 3 payments of £149.67 Learn more

£381.65 with code COSY15

Save £67.35

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Medium-Firm
Memory Foam
4000 Springs

Free Delivery from Friday 23rd October.

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High Tech Without The Pricetag

We think that everyone should be able to get good sleep without the pricetag. This is why our Insider Collection of mattresses features innovative technology to give you high-quality sleep without breaking the bank.

Mattress Features

Fabric cover is treated with Purotex, an innovative, 100% natural treatment certified by Allergy UK

A blend of wool and cashmere offers added luxury and enhances breathability and comfort

The Aura+ Graphite layer promotes airflow and has high thermal conductivity for cooler sleep

Reduces motion isolation and pressure relief with dual layers of high-tech micro springs

High density reflex foam offers plenty of pushback to promote a healthy spinal alignment

Edge-to-edge support adapts to your movement with 4000 individually nested coils

A foam layer on the base provides extra stabilising support to your mattress

Easy to clean cover has a zip-off design and is machine washable

Description

Dimensions

Firmness Guide

Warranty & Guarantee

Delivery & Returns

Product Questions

Description

Part of the Insider Collection, the Duette Hybrid Pro 4000 Pocket Spring Foam Mattress offers the ultimate sleep experience for couples. With over 4000 pocket springs and multiple layers of high-tech foam, the Duette Mattress provides targeted support to give you a cradled feeling for better sleep.

Motion Isolating Hybrid Mattress

Motion Isolating Hybrid Mattress

The Duette Hybrid Foam Mattress features 4000 pocket springs, providing a medium-firm rating that ensures sleepers enjoy a restful night's sleep every night. It's fantastic for couples as each spring is contained in an individual pocket, offering exceptional motion isolation to help reduce excess movement. This means that even if one of you likes to toss and turn, the other will be able to sleep peacefully with both sleepers enjoying a correct body alignment to reduce aches and pains.
Temperature Regulating Hybrid Mattress

Temperature Regulating Hybrid Mattress

With eight layers in total, including a high-density foam base layer and a unique graphite foam layer, the Duette 4000 Pocket Spring Mattress is the perfect way to sleep smarter, not pricier. The graphite foam has high thermal conductivity, allowing it to pull heat away from your body and maintain your optimal temperature, which helps you stay cool at night for better quality sleep.
Hypoallergenic Hybrid Mattress

Hypoallergenic Hybrid Mattress

Enjoy better sleep with the Duette Hybrid Pro 4000 Pocket Spring Foam Mattress thanks to its hypoallergenic properties. A wool and cashmere layer offers extra breathability and comfort, with the cover made from moisture-wicking fabric, providing an additional way to regulate your temperature while you sleep. It features a Purotex Treatment that works to reduce allergens, moisture, and mould, providing a hygienic sleep environment, making it particularly ideal for those with allergies or asthma.

Dimensions


4ft6 Double:

  • Width: 135 cm (4'6")
  • Length: 190 cm (6'3")
  • Weight: 34 kg


5ft King Size:

  • Width: 150 cm (5')
  • Length: 200 cm (6'6")
  • Weight: 39 kg


6ft Super King Size:

  • Width: 180 cm (6')
  • Length: 200 cm (6'6")
  • Weight: 44 kg



Mattress Depth (Thickness): 28 cm (11 inches)

Note: Sizes are approximates and may vary slightly.

Firmness Guide

Soft

Best for side sleepers and lighter body types, a soft mattress offers deep cushioning, gentle support, and enhanced sinkage for a plush, contouring sleeping experience.

Soft-Medium

Ideal for side and combination sleepers with lighter to average body types, a soft-medium mattress balances gentle cushioning, responsive support, and moderate sinkage.

Medium

Suitable for all sleeping positions and average body types, a medium mattress combines balanced cushioning, reliable support, and controlled sinkage for versatile comfort.

This Mattress

Medium-Firm

Best for back and combination sleepers with average to heavier body types, a medium-firm mattress provides supportive comfort, light cushioning, and reduced sinkage.

Firm

Ideal for back and front sleepers with heavier body types, a firm mattress delivers strong support, minimal cushioning, and very little sinkage for a stable feel.

Extra-Firm

Best for back sleepers with heavier body types, an extra firm mattress offers maximum support, minimal cushioning, and almost no sinkage for a solid sleeping surface.

Warranty & Guarantee

We're sure that you'll love your new item from Happy Beds, but to give you peace of mind, you'll be happy to know all of our products come with a 5-year manufacturer's guarantee as standard.

This guarantee covers any defects in the materials or craftmanship of the product, as long as it has been used during normal domestic use. Find out more in our full manufacturer's guarantee, with our terms and conditions offering more information if needed.

Delivery & Returns

We've made delivering your items easier than ever, with two options to choose from!

Standard delivery

  • FREE* Monday to Friday (weekends chargeable)
  • 1-man service delivered to your hallway
  • Courtesy email and text 24 hours before delivery
  • A 2 to 3 hour delivery slot

Premium delivery

  • Available from only £25
  • 2-man service delivered to a room of your choice (maximum 2 flights of stairs)
  • Courtesy email and text 24 hours before delivery
  • A 2 to 3 hour delivery slot

*Please note that delivery costs, services, and times are subject to availability and will depend on the product selected. Certain postcodes may incur extra charges. Find out more in our delivery policy.

Easy returns

Don't worry if something goes wrong, or you change your mind! We have detailed returns policy that can be found in our replacement, returns and refund page for more information. Please note that returns are subject to our terms and conditions.

Product Questions

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    Product Reviews

    4.8 star review
    4.8 Based on 4 reviews
    5 Star
    75 %
    4 Star
    25 %
    3 Star
    0 %
    2 Star
    0 %
    1 Star
    0 %

    Reasons to buy from Happy Beds

    Join thousands of happy customers who trust us for quality products and reliable service.

    Start enjoying better sleep sooner with selected products delivered as quickly as tomorrow.

    Buy confidently knowing your investment is protected by long term manufacturer warranty.

    Shop with confidence thanks to our straightforward 14-day hassle free returns policy.

    Out with the old and in with the new, removing the stress from upgrading your bedroom.

    Take the time and stress out of setup with dedicated assembly support UK-wide.

    Add a Mattress

    Firmness Quick Guide

    Soft

    Best for side sleepers and lighter body types, a soft mattress offers deep cushioning, gentle support, and enhanced sinkage for a plush, contouring sleeping experience.

    Soft-Medium

    Ideal for side and combination sleepers with lighter to average body types, a soft-medium mattress balances gentle cushioning, responsive support, and moderate sinkage.

    Medium

    Suitable for all sleeping positions and average body types, a medium mattress combines balanced cushioning, reliable support, and controlled sinkage for versatile comfort.

    Medium-Firm

    Best for back and combination sleepers with average to heavier body types, a medium-firm mattress provides supportive comfort, light cushioning, and reduced sinkage.

    Firm

    Ideal for back and front sleepers with heavier body types, a firm mattress delivers strong support, minimal cushioning, and very little sinkage for a stable feel.

    Extra-Firm

    Best for back sleepers with heavier body types, an extra firm mattress offers maximum support, minimal cushioning, and almost no sinkage for a solid sleeping surface.