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Mammoth Rise Plus Ortho Mattress

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Save up to £179.05
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Free delivery on Fri 30th July, order within 11 hrs 13 mins

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Spend over £300.00 to spread the cost.

Soothe away aches and pains, sleep deeper and wake refreshed. This firmer feel, orthopaedic, Medical Grade™ Foam mattress is scientifically tested and proven to provide better sleep. more info

  • Free Next Day Delivery
  • Type: Medical Grade Foam (4cm) | Orthopaedic
  • Firmness: Firm
  • Depth: 24cm
  • Warranty: 10 Years
UK Sizes
Single 3' x 6'3" / 90cm x 190cm
Delivery: Free Delivery within 3-5 Weeks
You pay £669.00 Delivered
Small Double 4' x 6'3" / 120cm x 190cm
Delivery: Free Delivery within 3-5 Weeks
You pay £799.00 Delivered
Double 4'6" x 6'3" / 135cm x 190cm Hurry! Limited Stock
  • Fri, 30th Jul 2021 (Free)
  • Sat, 31st Jul 2021 (+£17.50)
  • Sun, 1st Aug 2021 (+£17.50)
  • Mon, 2nd Aug 2021 (Free)
  • Tue, 3rd Aug 2021 (Free)
  • Wed, 4th Aug 2021 (Free)
  • Thu, 5th Aug 2021 (Free)
  • Fri, 6th Aug 2021 (Free)
  • Sat, 7th Aug 2021 (+£17.50)
  • Sun, 8th Aug 2021 (+£17.50)
  • Mon, 9th Aug 2021 (Free)
  • Tue, 10th Aug 2021 (Free)
  • Wed, 11th Aug 2021 (Free)
  • Thu, 12th Aug 2021 (Free)
  • Fri, 13th Aug 2021 (Free)
  • Sat, 14th Aug 2021 (+£17.50)
  • Sun, 15th Aug 2021 (+£17.50)
  • Mon, 16th Aug 2021 (Free)
  • Tue, 17th Aug 2021 (Free)
  • Wed, 18th Aug 2021 (Free)
  • Thu, 19th Aug 2021 (Free)
  • Fri, 20th Aug 2021 (Free)
  • Sat, 21st Aug 2021 (+£17.50)
  • Sun, 22nd Aug 2021 (+£17.50)
  • Mon, 23rd Aug 2021 (Free)
  • Tue, 24th Aug 2021 (Free)
  • Wed, 25th Aug 2021 (Free)
  • Thu, 26th Aug 2021 (Free)
  • Fri, 27th Aug 2021 (Free)
  • Sat, 28th Aug 2021 (+£17.50)
  • Sun, 29th Aug 2021 (+£17.50)
  • Mon, 30th Aug 2021 (Free)
  • Tue, 31st Aug 2021 (Free)
  • Wed, 1st Sep 2021 (Free)
  • Thu, 2nd Sep 2021 (Free)
  • Fri, 3rd Sep 2021 (Free)
  • Sat, 4th Sep 2021 (+£17.50)
  • Sun, 5th Sep 2021 (+£17.50)
  • Mon, 6th Sep 2021 (Free)
  • Tue, 7th Sep 2021 (Free)
  • Wed, 8th Sep 2021 (Free)
  • Thu, 9th Sep 2021 (Free)
  • Fri, 10th Sep 2021 (Free)
  • Sat, 11th Sep 2021 (+£17.50)
  • Sun, 12th Sep 2021 (+£17.50)
  • Mon, 13th Sep 2021 (Free)
  • Tue, 14th Sep 2021 (Free)
  • Wed, 15th Sep 2021 (Free)
  • Thu, 16th Sep 2021 (Free)
  • Fri, 17th Sep 2021 (Free)
  • Sat, 18th Sep 2021 (+£17.50)
  • Sun, 19th Sep 2021 (+£17.50)
  • Mon, 20th Sep 2021 (Free)
  • Tue, 21st Sep 2021 (Free)
  • Wed, 22nd Sep 2021 (Free)
  • Thu, 23rd Sep 2021 (Free)
  • Fri, 24th Sep 2021 (Free)
  • Sat, 25th Sep 2021 (+£17.50)
List: £799.00 You save £179.05
You pay £619.95 Delivered
King Size 5' x 6'6" / 150cm x 200cm
Delivery: Free Delivery within 3-5 Weeks
You pay £939.00 Delivered
Superking 6' x 6'6" / 180cm x 200cm
Delivery: Free Delivery within 3-5 Weeks
You pay £1,199.00 Delivered
  • Benefits
  • Specifications
  • Description
  • Warranty
  • Delivery
  • Benefits

    Part of Mammoth's perfectly-designed Rise mattress range
    Scientifically proven to provide a better night's sleep and enhanced comfort
    Delivered carefully rolled up - easier for you to handle and better for the environment
    Due to their larger size, Superking mattresses are delivered flat and unrolled
    A firmer feel mattress, perfect if you prefer plenty of support
    Orthopaedic for enhanced support and care
    Featuring a deep 4cm comfort layer of Mammoth's Medical Grade™ Foam
    Medical Grade™ Foam is naturally cooling for a fresher sleep
    PostureCell® technology provides pressure-relieving postural support
    Three support zones ensure body weight is evenly distributed across the mattress
    Base foam layer is sturdy and supportive
    Beautifully designed soft-touch quilted cover provides enhanced comfort
    Breathable air mesh cover around the border helps ventilate the mattress
    Beautifully designed soft-touch quilted cover provides enhanced comfort
    Hypoallergenic, helps guard against dust mites for a healthier sleep
    Single-sided for easy care and convenience - no need to flip your mattress over
    Depth: 24cm
    10 Year Warranty
    Made in the UK
  • Specifications

    Medical grade foam

    Medical grade foam

    Exceptional pressure relief and enhanced support

    Knitted cover

    Knitted cover

    Beautifully soft and breathable

    Pressure relief

    Pressure relief

    Evenly distributes weight for pressure point relief and comfort



    Reduces allergens for a cleaner, healthier sleep



    Firmer and more supportive

    24cm deep

    24cm deep

    About 9.4 inches deep



    There's no need to flip your mattress over, simply rotate



    Efficiently packaged, environmentally friendly, easier to move and handle. Please note: Superking mattresses are delivered flat

    10 Year Warranty

    10 Year Warranty

    For your peace of mind

    Handcrafted in the UK

    Handcrafted in the UK

    This product supports our economy and helps reduce environmental impact

    Fire Resistant

    Fire Resistant

    This product conforms to BS7177: 2008, for use at home

    Approved by the National Bed Federation

    Approved by the National Bed Federation

    For the highest standards of quality and safety

  • Description

    Perfect if you love a firmer, supportive feel, the Mammoth Rise Plus Ortho Mattress is expertly designed for your total comfort and wellbeing.

    Orthopaedic, firm and supportive

    The Rise Plus is a firm, orthopaedic mattress so it's the ideal choice if you love high levels of support. Thanks to the PostureCell® technology within the Medical Grade™ Foam, you'll get plenty of postural support to care for your back.

    Soothing comfort

    A generously deep 4cm of Mammoth's unique Medical Grade™ Foam is nestled on top of a supportive foam base. It's scientifically proven to enhance comfort and sleep, so you can wake feeling brighter and well-rested each and every morning.

    Perfect pressure relief

    There's nothing better than a comfortable place to rest at the end of a long day. Medical Grade™ Foam is specially designed to care for you as you sleep, and recommended by health care professionals for relief from aches and pains. The result is a restful, restorative sleep.

    Cool and fresh

    If you often sleep hot, this is the mattress for you! Since Medical Grade™ Foam is naturally cooling, you won't overheat. There's a breathable air mesh border too, for improved mattress ventilation and cooling freshness for you.

    Hypoallergenic for greater peace of mind

    As Medical Grade Foam™ naturally guards against dust mites, this mattress is a good choice whether you suffer from allergies or if you're simply looking for a clean, healthy sleep.

    Better for you, better for the environment

    As this mattress is delivered rolled-up, it's easier for you to move around your home before you unroll it. It's simple to unroll too. All you need to do is place your new mattress on your bed and unwrap it. After just a few hours, your mattress will expand.

    Rolled mattresses are better for the environment, too. Because they take up less space, we can deliver more altogether. That means lower emissions and a healthier environment for us all.

    No-fuss, easy to care for

    A great mattress should be easy to keep in great condition. That's why Mammoth have designed the Rise Plus Ortho as a single-sided, no-turn mattress. You'll never need to flip it over, but we recommend you turn it end-to-end once a month. Simple!

    Quality you can trust

    Confident you'll love the Rise collection, Mammoth provide a 10 Year Warranty for your complete peace of mind. In order to benefit from this, please refer to the information provided within your mattress packaging, where you'll be asked to register your mattress on the Mammoth website.

  • Delivery

    Next Day Delivery or Choice of Delivery Day

    When in stock, you can receive this product the very next day when ordered before 4pm.

    Don't want it tomorrow? No problem! Simply choose a different day in the basket.

    Available with the following delivery options:

    Free Delivery

    Delivered to the door of your building absolutely FREE.

    No Need to Wait in all Day!

    You will receive your items within a two-hour delivery window.

    You will be notified of your time slot the evening prior to your delivery, where possible.

    Two Man Delivery +£20

    Conveniently delivered to the room of your choice.

    Mattress RecyclingOptional Mattress Recycling available +£25.

    Saturday Delivery

    Perfect for those who are not available during the week.

    Costs £17.50 in addition to any other delivery costs.

    Delivery is on an all-day service, 7am - 8pm, Monday - Friday.

    For further information, please visit our Delivery page.

  • Warranty

    Need further assistance?

    Please contact us and we'll be happy to help.

Mammoth Rise Plus Ortho Mattress reviews verified by reevooReevoo

Quality of Materials
Value for money
Overall rating
Scores 9.8 out of 10 based on 15 reviews
10 out of 10


My partner suffers with spasms so there is less transference to me.
Being over 60 years old matttess turning every week as recommended is a major chore for the sake of warranty/guarantee
Confirmed purchase: 27 July 2019
Published on: 13 September 2019
10 out of 10


Kirkcaldy GB Honest, particular.
Well made and quite comfortable. Fingers crossed it retains the support throughout the life of the mattress. Opted for medium to firm support and this ticks all the boxes. I like the fact that I can turn and move around in comfort and not sink in too much. It's supportive but not too hard. The finish is excellent. For the first time in years I am sleeping almost through the whole night! Bliss.
No bad points.
Confirmed purchase: 24 May 2019
Published on: 26 June 2019
9 out of 10


London GB
it is a good quality mattress. comfy. does not loose shape.
Could be a bit harder
Confirmed purchase: 15 February 2018
Published on: 03 March 2018
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