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Try mattress for 14 Nights Enjoy a sleep trial on this mattress

Mammoth Rise Ultimate Mattress

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Frequently Asked Questions

Is this mattress part of your sleep trial?
View all 2 customer questions Ask a question

Enjoy a 14 Nights sleep trial on this mattress

Not happy with your purchase? We’ll swap it for you. Full peace of mind that your next mattress will be perfect for you!

Product Specification

A cloud-like feel, soft overall, but supportive core.
  • Soft
  • Medium
  • Firm
  • Super Soft
  • Soft
  • Medium Soft
  • Medium
  • Medium Firm
  • Firm
  • Extra Firm

Key Features

THIS ITEM IS NOW DISCONTINUED.
  • 45mm Medical Grade Foam.
  • Posturecell Technology.
  • 3 Comfort Zones.
  • 60mm Soft Touch Sky Foam.
  • 10 Year Warranty.
  • Mattress Depth: 24cm
  • Rolled Up Upon Delivery.
  • FREE 2-Man Delivery.

Key Information

More Information
Sleep Trial14 Nights
Warranty5 Years
Guarantee5 Years
Mattress Depth20-25cm
TurnableNo-Turn

Product Description

THIS ITEM IS NOW DISCONTINUED.

The Mammoth Rise Ultimate mattress is the top of the range mattress in the Rise Collection. This mattress has been created to offer not only wonderful comfort, support and durability, but also a superb price. With more Medical Grade Foam and PostureCell technology than ever before, the Rise Ultimate mattress is an incredible mattress that is scientifically proven to help improve your sleep. 

No other bed brand in the World has quite the same level of scientific backing and research. Mammoth is not only the 'go to' brand for sporting professionals, but they're also endorsed by an endless list of sporting and health groups, all of which underlines the impact a Mammoth mattress can have on your sleep and recovery. In fact; Mammoth is the only bed maker to ever have been endorsed by the NHS.
Mammoth has undertaken 1000's of hours of research and development with respected scientists around the World. This approach results in a range of mattresses that are proven to not only help you get to sleep more quickly but also to sleep deeper and more healthily, aiding recovery and recuperation through the night. No wonder it's such a big hit with Olympians and sports professionals alike.

The Mammoth Rise Ultimate mattress boasts a 50mm layer of Mammoth's amazing Medical Grade foam and PostureCell technology. This foam is famous within the bed industry as it was designed for the sole purpose of being used in beds, whereas other foams were already used in other industries and therefore never intended for use in beds. The open PostureCell technology sees grooves and ridges added to the foam, allowing for air to move freely through, which keeps the mattress cool and comfortable at all times. As well as this, the Medical Grade Foam layer is zoned, offering more support to the lumbar region, where the majority of your body weight is applied to the mattress. The result is excellent posture and the prevention of aches and pains, which form through the night if you are not supported fully.

The Rise Ultimate mattress has a surface layer of Soft-Touch Sky Foam, another material pioneered by Mammoth. This layer is soft and luxurious, the perfect sleeping surface. As this is a no-turn mattress, the soft layer of foam is on one side only. This mattress does not require flipping over but does need rotating once per Season (although we recommend this is done more often in the early weeks after delivery). 

Wrapped in the gorgeous Rise quilted cover, the Rise Ultimate mattress is also Hypoallergenic and comes vacuum packed and rolled up for ease of installation. This mattress is around 24cm deep and we deliver it for FREE!

Reviews

Read Mammoth Rise Ultimate Mattress Reviews.
1 Review

  1. Lauren Knight Says:
    80%
    Softer on top
    Love the mattress, but it is a bit softer than we hoped for. We spoke to My Next Mattress and they recommended some changes to our base, which has helped a lot, but it is a tad too soft. We are keeping it though, so only a small niggle!
    Verified Buyer

Frequently Asked Questions -
2 Answers

Is this mattress part of your sleep trial?

Yes! If you're not happy with it for any reason, you can return it for an exchange or refund.

How long does the mattress take to expand, and can we use this on a slatted bedframe?

The mattress should be carefully opened and left for around 4hrs, after which it will be fine to use. This mattress would be perfect for use on a slatted base, as there will be more air to get to the mattress, as long as the slats are not more than 7cm apart, as this can cause for uneven settlement.
Still looking a answer to your questions?

Delivery Information

Choose your delivery date at Checkout!

We deliver on the day of your choice.
Recycling of your old mattress can be chosen at the checkout.

Mattresses & Beds

- 2-3hr time window the day prior to delivery.
- Live tracking & 30mins notice.
- Delivery to the room of choice, unpack option can be chosen in checkout.

Pillows & rolled mattresses

- 1hr delivery slot.
- Delivery to the door.

Free £120 POA
yearguarantee

5 Year Guarantee

This item is completely covered for the 5-Years.
Any faults reported in the Guarantee period will result in a replacement for you at no cost whatsoever, pending confirmation of the fault by the manufacturer.

At MyNextMattress, we also go a step further and will offer you the choice of any item on our website, not just a like for like replacement from the same manufacturer. We will also exchange the goods for you at no charge (some offshore delivery costs may apply).

Think you have a fault or defect with your item? Please get in touch and we will respond straight away with the next steps.

My Next Mattress Guarantees

5 Year Guarantee

This item is completely covered for the 5-Years.
Any faults reported in the Guarantee period will result in a replacement for you at no cost whatsoever, pending confirmation of the fault by the manufacturer.

At MyNextMattress, we also go a step further and will offer you the choice of any item on our website, not just a like for like replacement from the same manufacturer. We will also exchange the goods for you at no charge (some offshore delivery costs may apply).

Think you have a fault or defect with your item? Please get in touch and we will respond straight away with the next steps.

Glossary

  • Breathability

    Mattresses need to breathe. With the amount of fillings and areas of space within a mattress, they can quickly hold heat and moisture. Over time this can influence the way a mattress behaves and also effect the life span of a mattress. 

    Manufacturers have developed different ways of tackling the problem of Breathability in mattresses. Some brands have used vents to allow air to pass through the mattress. Some brands use state-of-the-art materials to cover the mattress, such as Coolmax or Outlast. Memory Foam has a reputation of storing heat and moisture, as foam requires heat to soften up.Memory Foam brands have overcome this problem by applying Coolmax and Outlast, they also use Open Cell technology. This technique is to simply allow the foam to settle with larger spaces between the foam cells. This allows heat and moisture to move freely without getting trapped.

    Some mattresses are created in such a way that they do not require any additional Breathability methods. These mattresses are generally the entry level mattresses with Open Coil spring units and not a great deal of fillings.

  • Delivery

    Our deliveries are carried out by a small courier outfit called BJS Distribution. We use this company for all Double and Kingsize mattresses and Divan Beds. This service will see all goods taken to room of choice and unpacked, all packaging can be taken away for recycling (upon request). We use NIghtfreight for our smaller products (pillows and headboards etc). Delivery to the room of choice is free!

    We operate a next day delivery service on all our stocked items. If you order before 13:00, you can receive you new mattress, bed, pillow or headboard the following day. Delivery is free!

    Our couriers will speak with you to arrange a delivery timeslot, and also offer an hours notice within this timeframe. With smaller items, on Nightfreight's service, we offer 30mins notice ahead of arrival.

  • Hypoallergenic

    Put simply, Hypoallergenic materials do not cause the amount of irritation that non-hypoallergenic materials can. Hypoallergenic materials can still cause irritation in some cases, the chances of this are reduced greatly. People with severe allergies and asthma may still have problems with items called hypoallergenic, but the risk is greatly reduced.

    Hypoallergenic materials do not omit the same particles and fibres as other non-hypoallergenic materials. These particles are to blame for causing irritation and discomfort and in some cases the irritation can be dangerous. The Hypoallergenic properties of these materials can be created by number of techniques. Some materials (Memory Foam or Latex) are naturally hypoallergenic, others have been chemically treated.

  • Orthopaedic

    Orthopaedic mattresses are usually the firmest mattresses on the market. A common mistake made by those with back pain, is to assume that a firm Orthopaedic mattress will be the solution. Personal comfort and a correct diagnosis of the cause of the pain should always be saught before purchasing an Orthopaedic mattress. 

    Many brands have 'Ortho' mattresses. Terms used include 'Backcare' or 'Orthocare' and the theme is generally to produce a firmer feeling mattress. The idea is to create a mattress that the body can rest on without sinking in and bending the spine, causing pressure to build up. However, if a lighter person lays on a firmer mattress, they will find the spine will not align correctly as the loaded parts of the body (shoulders, hips etc) are not sitting correctly. For more information on the causes of back pain, click here or read about another solution in the Zoning description.

  • Pressure Points

    Pressure Points are created in the body when lying on a mattress which is not suitable for a persons physique. The Pressure Points are caused by putting stresses through the body. When the spine is not aligned correctly (i.e, straight), it can cause pressure to build up in the back, hips or shoulders (etc).

    When a bed is too soft, the body sinks in, causing certain areas to be under the strain of the rest of the body. When a mattress is too hard/firm, then the weight applied can cause the body to flex/bend in the opposite way - causing a similar problem. Hips, shoulders and so on, are requried to be sunken into the mattress slightly more than the surrounding areas, as they carry the weight. When this is not the case, the lower back may be bent to compensate. The ideal mattress is one which will keep the spine straight.

  • Turn / No Turn

    Some mattresses require turning over, to aid even settlement. Others do not require turning, but will still require rotating.

  • Warranty

    Every mattress we sell comes with at least a 12 month manufacturers guarantee, though most come with much longer guarantees. To find out what mattress warranty is included with your purchase, look out for the rosette on the top right corner of the mattress page. All new goods are sold with a minimum 12-month manufacturers guarantee. Full details are available on request. In addition to the manufacturers guarantee MyNextMattress offers a limited extended mattress warranty. This warranty varies in length item by item. You must keep all your purchase records as they will be needed in the event of a claim. The warranty is applied as follows:

    • The mattress warranty is against faults in manufacture, not wear and tear or damage.
    • The mattress must always be used with a mattress protector, turned and cleaned as per the manufacturers instructions and must be unsoiled at the time that the claim is lodged.
    • The claim must be registered with MyNextMattress by email or in writing. All details of the claim must be lodged with MyNextMattress by email or in writing.

    If the claim is accepted the following process will apply:

    • We will arrange to collect the goods and return them to us for inspection.
    • The carrier reserves the right to refuse to collect items that are not packaged suitably or which is unhygienic.
    • We may require pre payment for the costs of the collection in some circumstances.
    • If we validate the claim we will contact you to arrange the replacement goods to be dispatched to you and delivered to you on a date that is convenient for you.
    • The replacement item can be any item from our then current range.
    • The difference in price from the warranty covered item is payable by you, along with the cost of collecting the original item.

    There will be an allowance granted against the replacement item according to the following scale.

    • If the claim is validated within the first two years - 40% of the original price will be credited.
    • If the claim is validated in year three of the purchase -25% of the original price will be credited.
    • If the claim is validated in year four of the purchase - 15% of the original price will be credited.
    • If the claim is validated in year five or (if warranty is for longer than five years then any subsequent year up to the warranty period) -10% of the original price will be credited.

    The warranty is only applicable to the original purchaser and is only valid if approved by MyNextMattress. It should be considered as extra peace of mind in case of manufacturing defects that arise after the manufacturers mattress guarantee has expired. It should not be regarded as a guarantee that any item will last for any particular period of time, or as a guarantee against deterioration in performance. It is in addition to your statutory rights. There is no entitlement to a cash payment in lieu of the replacement. The replacement item must be at the same or higher price than the original.

  • Zoning The idea behind Zoning is to offer support where it is needed. The body has certain areas under pressure when lying flat. Zones are designed to split the mattress into sections and offer some areas more support than others. The end result will be a straight spine and pressure relieved. Some mattresses are split into 3 Zones, some into 5 Zones and some into 7 Zones and so on. The principle areas requiring support (and therefore their own individual Zones) are the head, shoulders, hips and feet.  The spine should remain level as much as possible when lying on a mattress, therefore the areas with the most weight applied should be slightly firmer to allow for the extra loading. At the same time, the surrounding areas need to compensate for this and will not be as firm to allow the spine to remain straight. The Zoning may be created by simply adding more layers of fibres where needed, or a different type of spring in certain areas. In latex or foam mattresses, it is possible to vary the density of the foam or latex to create different tensions where required. Latex mattresses can also be sculpted in certain areas to remove latex and therefore make certain areas softer.

Price Match Promise

If you find a better price, we will beat it by £5.

In the unlikely event that you find a price better than ours, worry not - we'll beat it!
This promise extends from pre-ordering right up to the day of delivery!

We watch our competitors prices and pride ourselves on being the most competitive online. Therefore, if you don't have the time to hunt around for the best price, order with us and we'll honour our price match promise until you have taken delivery of your order. This leaves you safe in the knowledge that you will take delivery as fast as possible, for the lowest price possible!

Also, we do genuinely like to know if our prices are being beaten, so please let us know!


Rated Excellent - MyNextMattress

Sold Out!

This item is now sold out!
We have other similar options and we're on hand to help with recommendations.

Call us on 0116 274 7545



Request Callback
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