We're still delivering throughout lockdown. Read more
Your Basket
0 items
Your shopping basket is empty
Need help? Call us on 01709 780881
Mon - Sat
9:30am - 5.30pm
10:00am - 4:00pm

Mammoth Rise Ultimate Mattress

Product options:
Up to 25% off
From only 
Save up to £269.05
Spend over £300.00 to spread the cost.
Free delivery on Mon 7th December, order within 13 hrs 28 mins

Choose your Delivery Date:

Add to Basket
Please make the following selections and click Buy to add the item to your basket:


Spend over £300.00 to spread the cost.

Perfectly crafted for the ultimate night's sleep! Cosy and remarkably comfortable, this top-of-the-range Medical Grade™ Foam mattress is a great choice if you need enhanced care and soothing relief for aches and pains. more info

  • Free Next Day Delivery
  • Type: Medical Grade Foam (5cm)
  • Firmness: Soft to Medium
  • Depth: 24cm
  • Warranty: 10 Years
UK Sizes
Single 3' x 6'3" / 90cm x 190cm
Delivery: Free Delivery within 8-10 Weeks
You pay £939.00 Delivered
Small Double 4' x 6'3" / 120cm x 190cm
Delivery: Free Delivery within 8-10 Weeks
You pay £1,069.00 Delivered
Double 4'6" x 6'3" / 135cm x 190cm Hurry! Limited Stock
  • Mon, 7th Dec 2020 (Free)
  • Tue, 8th Dec 2020 (Free)
  • Wed, 9th Dec 2020 (Free)
  • Thu, 10th Dec 2020 (Free)
  • Fri, 11th Dec 2020 (Free)
  • Sat, 12th Dec 2020 (+£17.50)
  • Sun, 13th Dec 2020 (+£17.50)
  • Mon, 14th Dec 2020 (Free)
  • Tue, 15th Dec 2020 (Free)
  • Wed, 16th Dec 2020 (Free)
  • Thu, 17th Dec 2020 (Free)
  • Fri, 18th Dec 2020 (Free)
  • Sat, 19th Dec 2020 (+£17.50)
  • Sun, 20th Dec 2020 (+£17.50)
  • Mon, 21st Dec 2020 (Free)
  • Tue, 22nd Dec 2020 (Free)
  • Wed, 23rd Dec 2020 (Free)
  • Thu, 24th Dec 2020 (Free)
  • Sat, 26th Dec 2020 (+£17.50)
  • Mon, 28th Dec 2020 (Free)
  • Tue, 29th Dec 2020 (Free)
  • Wed, 30th Dec 2020 (Free)
  • Thu, 31st Dec 2020 (Free)
  • Sat, 2nd Jan 2021 (+£17.50)
  • Mon, 4th Jan 2021 (Free)
  • Tue, 5th Jan 2021 (Free)
  • Wed, 6th Jan 2021 (Free)
  • Thu, 7th Jan 2021 (Free)
  • Fri, 8th Jan 2021 (Free)
  • Sat, 9th Jan 2021 (+£17.50)
  • Mon, 11th Jan 2021 (Free)
  • Tue, 12th Jan 2021 (Free)
  • Wed, 13th Jan 2021 (Free)
  • Thu, 14th Jan 2021 (Free)
  • Fri, 15th Jan 2021 (Free)
  • Sat, 16th Jan 2021 (+£17.50)
  • Mon, 18th Jan 2021 (Free)
  • Tue, 19th Jan 2021 (Free)
  • Wed, 20th Jan 2021 (Free)
  • Thu, 21st Jan 2021 (Free)
  • Fri, 22nd Jan 2021 (Free)
  • Sat, 23rd Jan 2021 (+£17.50)
  • Mon, 25th Jan 2021 (Free)
  • Tue, 26th Jan 2021 (Free)
  • Wed, 27th Jan 2021 (Free)
  • Thu, 28th Jan 2021 (Free)
  • Fri, 29th Jan 2021 (Free)
  • Sat, 30th Jan 2021 (+£17.50)
  • Mon, 1st Feb 2021 (Free)
  • Tue, 2nd Feb 2021 (Free)
List: £1,069.00 You save £269.05
You pay £799.95 Delivered
King Size 5' x 6'6" / 150cm x 200cm
Delivery: Free Delivery within 8-10 Weeks
You pay £1,199.00 Delivered
Superking 6' x 6'6" / 180cm x 200cm
Delivery: Free Delivery within 8-10 Weeks
You pay £1,469.00 Delivered
  • Benefits
  • Specifications
  • Description
  • Warranty
  • Delivery
  • Benefits

    Top of Mammoth's Rise mattress range - scientifically proven to improve comfort and sleep
    This mattress is delivered rolled up and packaged in a box - easy to get around corners and upstairs
    Rolled mattresses are better for the environment as they help reduce carbon footprint
    Due to their larger size, Superking mattresses are delivered flat and unrolled
    Top-of-the-range Medical Grade™ Foam mattress from Mammoth
    Luxuriously deep 6cm SkyFoam™ layer for remarkable comfort
    5cm of naturally cooling Mammoth Medical Grade™ Foam to soothe aches and pains
    Both Medical Grade™ Foam and PostureCell™ technology are proven to enhance sleep
    Recommended by health care professionals to ease back pain
    Nestled underneath is a sturdy foam base layer, zoned for total-body support where you need it most
    Zoning also helps ensure even body weight distribution
    A softer, gentle firmness rating - perfect if you love soft and cosy comfort
    Oh-so-soft quilted cover for maximum luxury
    Airmesh border helps improve airflow and freshness throughout the mattress
    Hypoallergenic and guards against dust mites
    Single-sided, so there's no need to turn it 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

    Soft to Medium

    Soft to Medium

    Gentle support and a plush, softer feel

    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

    Enjoy gentle comfort and soothing relief for aches and pains with the Mammoth Rise Ultimate Mattress. Top of the Rise collection by Mammoth, this is a truly luxurious mattress.

    Soothing pressure relief

    Wake feeling rested - the Rise Ultimate helps soothe soreness and relieve pressure build-up. The secret is Mammoth's Medical Grade Foam™ - a clever comfort layer that works in harmony with your body to deliver soothing pressure relief.

    Sleep peacefully, knowing your new mattress is working hard to care for you. Medical Grade™ Foam is recommended by health professionals to ease back pain and it's been scientifically tested and proven to enhance comfort and sleep.

    Luxuriously cosy

    Oh-so-cosy, this beautifully crafted mattress provides gentle support. It's perfect if you love a more cushioned feel. It's all down to the luxurious 6cm of SkyFoam™ - a plush, pampering layer of cosiness!

    The Rise Ultimate is then wrapped up in a luxurious quilted cover. It's truly a mattress that hugs you to sleep.

    All the support you need

    Medical Grade™ Foam features Mammoth's state-of-the-art PostureCell® technology. This clever support material provides excellent postural support, exactly where you need it. It's nestled on top of a thick and sturdy base foam layer for additional support.

    Breathable and cooling

    There's no need to worry about overheating with the Rise Ultimate Mattress. This is a mattress that will keep you cool and fresh as you sleep. It's all down to the naturally cooling Medical Grade™ Foam and breathable mattress border.

    Kind to you, kind to the planet

    The Rise Ultimate is delivered rolled-up and boxed - so it's much easier to move up the stairs and around corners than traditional mattresses. It's easy to unroll too! Simply place the mattress on your bed and unwrap it. Your new mattress will expand to its full size within a few hours.

    Rolled mattresses are more environmentally-friendly, too. Since they're rolled-up, they take up less space which means we can deliver more in one go. Fewer journeys mean fewer emissions - and a better future for our planet.

    Please note: due to the larger size of Superking mattresses, these mattresses will arrive flat and unrolled.

    Easy to care for

    A single-sided, easy-care mattress, the Rise Ultimate is super-simple to keep in the perfect condition you expect. All you need to do is rotate it regularly, from end-to-end. There's no need to turn it over.

    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 Ultimate Mattress reviews verified by reevooReevoo

Quality of Materials
Value for money
Overall rating
Scores 9.4 out of 10 based on 5 reviews
9 out of 10


Deal kent GB
Great support and soft feeling.
Confirmed purchase: 13 June 2018
Published on: 23 June 2018
9 out of 10


Croydon GB
very comfortable, more restful sleep. Price reflects quality.
Reviewer left no comment
Confirmed purchase: 09 May 2017
Published on: 23 May 2017
10 out of 10


Tried this mattress on the high street first, So knew what it felt like.
The price reflects the quality,
Best nights sleep in years.
Confirmed purchase: 16 December 2015
Published on: 16 January 2016
Browse Manufacturers
Need a little help?
Go to Advice Give us a call