Updated June 2024

Top 10 Best Mattresses In a Box UK

You will spend a third of your life on a mattress. We are here to help you make a better choice when buying a mattress in a box in the UK. We provide detailed reviews of the best rated mattresses in a box of 2024.

Advertising Disclosure: We receive referral fees from the brands listed below.
President's Day
  • 1
    Best Value
    Spring SALE | 21% OFF All Mattresses
    • Materials: Memory Foam with cooling layer
    • Firmness: Medium firm
    • Shipping: Free Named Day Shipping*
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR standards
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
    CHECK PRICE Full Review
    Excellent pressure relief, comfort and motion isolation
    • Award winning mattress
    • 365-Night Home Trial
    • Forever warranty
    • Free shipping everywhere in the UK
    Full Review
    9.9 Outstanding
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  • 2
    Best Overall
    Bank Holiday Sale - Up to 25% OFF
    • Materials: Aerocoil microsprings and cooling Simbatex foam
    • Firmness: medium-firm
    • Shipping: Free delivery & returns
    • Trial Period: 200 nights
    • Warranty: 10 Years
    • Certifications: CertiPUR
    • Financing: 0% interest, up to 4 years & pay nothing for a year
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    The world’s most five star reviewed mattress brand
    • Organic Luxury Hybrid Mattress
    • Free Shipping & Returns
    • Won over 50 Sleep Awards
    Full Review
    9.7 Outstanding
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  • 3
    Best Hybrid
    SALE | 58% OFF Mattresses + Free Bedding Set
    • Materials: Hybrid memory foam and innerspring coils
    • Firmness: Medium luxury firm
    • Shipping: Free delivery and returns
    • Trial Period: 365 days
    • Warranty: Lifetime Warranty
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
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    High quality materials for durable & cooler sleep
    • Luxury Hybrid Mattress
    • 365-Night Sleep trial with Lifetime Warranty
    • Financing available - As low as 0% APR
    Full Review
    9.7 Outstanding
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  • 4
    Spring Sale | 21% OFF
    • Materials: Hybrid
    • Firmness: 6.5 Medium
    • Shipping: Free - no contact delivery
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR-US standards
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    Hybrid offering pressure relief, support, and comfort
    • Long trial period and lifetime warranty
    • Suitable for all sleeping positions
    • Contouring and bounce
    Full Review
    9.4 Great
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  • 5
    Winter Sale! Get Up to 65% Off
    • Materials: Hybrid with integrated topper
    • Firmness: Medium 6.5/10
    • Shipping: Free Shipping & Returns
    • Trial Period: 200 days
    • Warranty: 15 years warranty
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    2-1 hybrid mattress with integrated topper
    • Advanced pocket spring system
    • 200-Night home trial
    • 15 years warranty
    Full Review
    9.3 Great
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Our Top Choice

  • 1
    Best Value
    Spring SALE | 21% OFF All Mattresses
    • Materials: Memory Foam with cooling layer
    • Firmness: Medium firm
    • Shipping: Free Named Day Shipping*
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR standards
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
    CHECK PRICE Full Review
    Excellent pressure relief, comfort and motion isolation
    • Award winning mattress
    • 365-Night Home Trial
    • Forever warranty
    • Free shipping everywhere in the UK
    Full Review
    9.9 Outstanding
    CHECK PRICE
  • Side-By-Side Comparison

    Best Mattresses In a Box
    Best Value
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    Best Overall
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    Best Hybrid
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    Model Nectar Mattress Simba Mattress Dreamcloud Mattress Nectar Hybrid Mattress Hypnia Supreme Hybrid Mattress
    Material Foam Hybrid Hybrid Hybrid Hybrid
    Cooling 8/10 9/10 9.5/10 9/10 7/10
    Firmness 6.5 / 10 6.5/10 6.5/10 6.5/10 6.5/10
    Motion Isolation 8/10 8.5/10 7/10 7/10 7/10
    Trial Period 365-Night Trial 200-Nights 365-Night Trial 365-Night Trial 200-Night Trial
    Free Shipping and Returns Yes Yes Yes Yes Yes
    Warranty Lifetime 10 Years Lifetime Lifetime 15 Years
    Price Level Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar
    Special Sales
    Spring SALE | 21% OFF All Mattresses
    Bank Holiday Sale - Up to 25% OFF
    SALE | 58% OFF Mattresses + Free Bedding Set
    Spring Sale | 21% OFF
    Winter Sale! Get Up to 65% Off
    Check price Check price Check price Check price Check price

    How to Choose the Best Mattress in A Box UK 2024?

    With the advent of mattress-in-a-box technology, selecting a mattress from a range of online brands and having it conveniently shipped to your doorstep has become increasingly popular. However, the process of purchasing a mattress in a box is not without its challenges. While the convenience of buying a mattress in a box is apparent, this method lacks the hands-on experience of trying out the mattress before purchase.

    The rise of mattress-in-a-box options has revolutionized the mattress buying experience, offering unparalleled convenience. However, when selecting a mattress in a box, potential buyers face the challenge of predicting how well the mattress will suit their individual comfort and support needs without physically testing it. Questions like the suitability of the mattress for different sleeping styles, especially for foam mattresses that might retain heat, are critical considerations. In this context, we provide essential tips for navigating the mattress-in-a-box buying process, ensuring that your choice aligns with your sleep preferences and comfort requirements.

    How to Choose the Best Mattress in A Box UK 2024?

    Considerations When Buying a Mattress in a Box Online

    Mattress in-a-box Types

    Bed-in-a-box options have revolutionized the mattress market, offering a variety of mattress types to suit different preferences.

    For instance, memory foam mattresses, the most modern bed-in-a-box type, are popular for their responsiveness and viscoelastic properties. These bed-in-a-box memory foam mattresses provide an enveloping feel, offering personalized support and pressure relief.

    Latex mattresses, another popular bed-in-a-box option, are made from latex derived from rubber trees. These bed-in-a-box latex mattresses offer a similar feel to memory foam but are more breathable and bouncier. They are especially suited for individuals with allergies or asthma, with 100% natural latex options available.

    Hybrid mattresses in a box combine the support and bounce of a coil system with the comfort layers of memory foam or latex, offering a blend of support and contouring.

    Size

    The innovative Automated Compression Technology allows manufacturers to compress any type of mattress into an easy-to-ship bed-in-a-box. This technology encompasses all standard UK mattress sizes, ranging from small single to large emperor, ensuring that every preference is catered for in the bed-in-a-box market.

    Mattress in-a-box  Firmness

    Bed-in-a-box mattress brands cater to a wide array of sleeping needs by offering various firmness levels. Selecting the ideal firmness for your bed-in-a-box mattress largely depends on factors like weight, body shape, and preferred sleeping style. For instance, soft mattresses in a box are typically recommended for side sleepers under 10 stone. Medium-firm bed-in-a-box mattresses suit those weighing between 9 and 18 stone and accommodate all sleeping styles. Heavier stomach sleepers, particularly those over 20 stone, may find firmer bed-in-a-box mattresses more suitable as they provide a stable and comfortable spine alignment, reducing the risk of back pain.

    Warranty and Return Policies

    One challenge of buying a bed-in-a-box online is the uncertainty of its suitability. To address this, leading bed-in-a-box brands offer trial periods, often extending to three months or more, allowing customers to test the mattress in their own homes. It's important for buyers to review the sleep trial policies, including the minimum duration and return procedures, when considering a bed-in-a-box. Additionally, understanding the warranty details, including coverage and conditions that may void the warranty, is crucial when investing in a mattress in a box.

    Our Top Picks
    for June 2024
    Nectar Mattress
    Best Value
    Nectar Mattress
    Memory Foam | 6.5 / 10
    Nectar Mattress
    CHECK PRICE
    Spring SALE | 21% OFF All Mattresses
    Simba Mattress
    Best Overall
    Simba Mattress
    Hybrid | 6.5/10
    Simba Mattress
    CHECK PRICE
    Bank Holiday Sale - Up to 25% OFF
    Dreamcloud Mattress
    Best Hybrid
    Dreamcloud Mattress
    Hybrid | 6.5/10
    Dreamcloud Mattress
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    SALE | 58% OFF Mattresses + Free Bedding Set

    Recommended Mattress

    Best Value: Nectar Mattress

    Definitely, it’s hard to go wrong with the Nectar if you’re looking for a relatively affordable but great quality memory foam mattress. Its medium-firmness makes it a suitable candidate for first-time memory foam buyers who aren’t sure which firmness level will work for them. In addition, its ability to support different sleeping positions makes it a great pick for couples who can’t agree on the best mattress. Lastly, this mattress will make an incredible purchase for a guest room.

    Visit Nectar Mattress Site
    Special Sale! - Nectar Mattress
    Nectar Mattress
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    Trial365-Night Trial
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    WarrantyLifetime
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    Shipping/Returns& Returns
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    Mattress TypeMemory Foam
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    Firmness6.5 / 10
    Spring SALE | 21% OFF All Mattresses
    • Hot sleepers
    • Couples
    • People on a budget
    • All Sleepers
    Overview

    The Nectar mattress is an 11-inch foam bed that can be used on any type of bed frame, including adjustable and metal frames. It has a medium firmness rating of 6.5 out of 10 on the firmness scale and offers sleepers all-around comfort across all body shapes. This bed-in-a-box style mattress ships right to your doorstep, providing value for money with its 365-day trial period, free shipping, free returns and Forever Warranty. We expect this product to last 5 to 7 years with regular use.

    Pros & Cons
    • Accommodates different sleeping positions
    • Sleeps cooler than traditional memory foam
    • Easy to move on
    • All-foam construction compromises bounce

    Best Overall: Simba Mattress

    The Simba mattress is a nicely-built mattress that we expect to meet most people’s sleep needs. This mattress offers an impressive balance between comfort and support and will accommodate different body types and sleeping positions. Best of all, the manufacturer has addressed the heat retention issue that troubled the previous version. We also appreciate the 200-night trial period and the 10-year warranty that Simba offers. Although most people end up keeping the mattress, those who’ve returned it affirm that the process is straightforward. Have we pointed out that all returns are free?

    Visit Simba Mattress Site
    Special Sale! - Simba Mattress
    Simba Mattress
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    Trial200-Nights
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    Warranty10 Years
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    Shipping/Returns& Returns
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    Mattress TypeHybrid
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    Firmness6.5/10
    Bank Holiday Sale - Up to 25% OFF
    • Hot sleepers
    • 200-night home trial
    • People with back pain
    • back sleepers
    Overview

    The Simba is a 5-layer 25cm (9.75 inches) thick hybrid mattress with conical pocket springs, proprietary memory foam and poly foam. The mattress is categorised as medium-firm, managing a 6.5 on the 1-10 firmness scale. It comes in all UK bed sizes from small single to Emperor and EU sizes ranging from EU small single to EU queen. This mattress is part of the bed-in-a-box technology and it's shipped in a large box measuring 107cm x 50cm x 50cm. This can be used on any supportive mattress platforms including box spring and slatted bed frame.

     

    Pros & Cons
    • Offers excellent back pain relief
    • It’s cooling
    • Has above-average edge support
    • Accommodates various sleeping positions
    • Doesn’t make you feel stuck
    • Not as bouncy as standard hybrid mattresses
    • Mattress has no handles