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REM-Fit 500 Ortho Mattress Review


Written by Kyle

Last Updated: 6th April, 2022

In this REM-Fit 500 Ortho mattress review, we've taken a closer look at one of the most commonly recommended orthopaedic mattresses for back pain and sciatica to see what its features are and what makes this mattress different from the rest. 

REM-Fit is an incredibly popular brand that offers a handful of different mattresses, each one with its specific suitability and features in mind, making sure there's something for each taste. If the REM-Fit 500 Ortho doesn't convince you, you might want to check out their Bamboo Charcoal mattress with hypoallergenic features, or the softer 600 Lux model.

But for now, let's concentrate on this award-winning hybrid mattress and what it has to offer.

✓ People with back pain or sciatica
✓ Front & back-sleepers
✓ Heavyweight sleepers
 • No side handles for easy manoeuvring
 • Slow response foam layer
 • Can be too firm for lightweight side-sleepers

(Summary in Conclusion with Important Considerations)

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Mattress Performance Test

1. Pressure Relief

REM-Fit 500 Ortho pressure relief

The top layer of the REM-Fit 500 Ortho is a memory foam layer that is designed to provide the sleeper with good pressure relief while the pocket springs right below the foam will support the body at rest. This mattress is comfortable to sleep on in the three most common sleeping positions and could even be a good option for heavier front-sleepers thanks to its great support.

• Side Sleepers➮ Even distribution of pressure and very little added pressure on the hips.
• Back Sleepers➮ Excellent support in the lower back area and great pressure relief overall.
• Front/ Stomach Sleepers➮ Supportive enough to not allow the sleeper's mid-section to sink into the mattress.

2. Temperature Regulation

Temperature review REM-Fit 500 ortho

No matter if you're a hot sleeper or not, we've all experienced waking up feeling overheated and sweaty at some point and it's not a pleasant experience. For some people, this happens more frequently than for others and bad sleep can ruin an entire day, which is why the mattress brands put a lot of emphasis on the cooling features of their mattresses. In some cases, they do work while in others, not so much.

The REM-Fit 500 Ortho mattress has a layer of open-cell structured memory foam which is designed to regulate the temperature of the sleeper and prevent heat from getting trapped inside the foam. This, together with the allowance of airflow through the mattress has proven to work very well. Our tests for heat-retention showed great results that could make this mattress a suitable option for those who tend to overheat at night.

3. Spinal Alignment

Spinal alignment REM-Fit Ortho 500

People who are looking to buy an orthopaedic mattress are often suffering from some type of pain, either in their back or neck or due to compression of the sciatic nerve. Getting a mattress that provides good spinal alignment is always important, but for those in pain, it is imperative in order to not make the problem worse.

Firm mattresses can, in some cases, not allow for your hips and shoulders from sinking slightly into the mattress and thus preventing the spine's natural alignment. However, this orthopaedic mattress does, despite its firmer nature, provide excellent alignment of the sleeper's spine while being supportive enough even for heavier sleepers.

4. Motion Isolation

If you're sleeping next to a partner it might be interesting to check how well the mattress isolates motion before deciding. Generally speaking, all-foam mattresses tend to isolate the movement from a restless partner better than a pocket-sprung or a hybrid mattress.

According to our tests, the REM-Fit 500 Ortho manages to isolate movement quite well despite the heavy bouncing and its thick spring layer. The upper layer of memory foam absorbs a lot of the motion, leaving any resting partner relatively undisturbed.

5. Edge Support

A mattress that lacks good edge support could potentially start sagging at the edges over time, shortening the life span of the mattress. You will want to be able to enjoy the full surface of your mattress, especially if you're sleeping next to someone, without the sensation of falling out of bed.

The 500 Ortho showed great results both on the inner part of the edge as well on the outer edge which speaks for its firmness and the high quality of its added edge-to-edge-support around the spring layer.

REM-Fit 500 Ortho Mattress Firmness 

The REM-Fit 500 Ortho Mattress is a firm feel mattress. Designed to be as supportive as possible, it could also be suited for those who complain about backaches. For this REM-Fit 500 Ortho mattress review, we have situated it at about an 8 out of 10 for firmness, making it one of the firmest mattresses we have reviewed.

Front-sleepers and back-sleepers can also benefit from this mattress as it is supportive enough to prevent the sleeper's mid-section from sinking too deep into the mattress, pulling the spine out of alignment. It can also be suitable as a mattress for heavy people who need some added support overall.

For softer feeling mattresses head on over to our REM-Fit 600 Lux Mattress Review and REM-Fit 400 Mattress Review.

REM-Fit 500 Ortho firmness

REM-Fit 500 Ortho Mattress Construction And Certifications

The REM-Fit 500 Ortho Mattress is a hybrid design, which means that it has both springs and memory foam and this mattress has 4 layers of comfort plus the cover.

Being a UK based company, REM-Fit must and do comply with certain regulations during manufacturing. The mattresses from REM-Fit are Certipur certified, which is a set of European safety, health and environmental regulations.

REM-Fit 500 Ortho Mattress Cover 

Starting with the cover, which is a silky soft material made from REM-Fit’s very own thermo-regulating RE-AX knitted fibres. With the thermo-regulating fibres, you can rest easy knowing that you shouldn't overheat. The cover is removable and machine washable, which makes it more convenient to clean and helps keep the cover fresh. 

The REM-Fit 500 Ortho mattress cover is also hypoallergenic, which means that it's very unlikely to cause sniffles or upset your sinuses. Our Review on the REM-Fit Natural Mattress boasts quite an extraordinary cover if you want to check that one out too.

The bottom of the mattress is covered in an anti-slip coating that will help the mattress stay in place on most bed bases.

REM-Fit 500 Ortho Mattress Layers

REM-Fit 500 Ortho layers
  1. Zoned Open-cell Memory foam - This layer is all about keeping you comfortable and at a balanced sleep temperature. The cool open-cell memory foam is REM-Fit’s answer to sweaty memory foam properties. By producing a foam with more air pockets, the memory foam not only moulds to your body but is also is thermoregulating, meaning that it's designed to not heat you up while being ‘hugged’ by the memory foam.

    This layer is also "zoned" for comfort and relieve pressure, especially for the bonier and extruding areas of your body, while maintaining a correct spinal alignment.

  2. Encapsulated Pocket-spring layer - With 2000 extra firm encapsulated springs, the REM-Fit 500 Ortho mattress provides excellent firm back support and comfort. These are full-sized springs and not mini springs like many hybrid mattresses have.

    Each spring moves independently, meaning that as you move you are always supported and when your restless partner moves, you shouldn't. The individual springs allow for you to easily switch positions while sleeping, they simply support and respond to your movements in an immediate fashion.
  3. Edge-To-Edge Support Layer (14 cm) - The encapsulated foam walls sit above the base layer and surround the springs. This layer keeps tension across the mattress so that the edges do not sag. This means you won’t roll off the edge and can even sit on it. The design adds to the lifespan of the mattress and keeps is stable.
  4. Dense Base Layer (4 cm) - The final layer is the foundation of the mattress. The high-density foam layer is designed to provide a strong, sturdy and long-lasting foundation for your mattress. The base of the REM-Fit 500 Ortho mattress is designed to support your weight for 15 years at least.


How Thick Is the REM-Fit 500 Ortho Mattress?

Height REM-Fit 500 Ortho

The REM-Fit 500 Ortho mattress is 25cm thick, which is the industry standard. That way you can rest assured your current bedsheets should fit. The REM-Fit 500 Ortho mattress can also hold up to 40 stone combined weight (20 stone per sleeper) and should be able to hold that weight for at least 15 years.

REM-Fit Mattress Trial, Return And Guarantee

The REM-Fit 500 Ortho Mattress comes with a 100-night risk-free trial. This allows you to test the mattress yourself, for 100 nights. If it’s not the right mattress for you, then REM-Fit will collect the mattress and give you a full refund. The only thing you're asked to do is to sleep on your new mattress for at least 30 nights before issuing a return to give your body time to get used to it.

All returned mattresses are donated to the British Heart Foundation and will be picked up within approximately 14 days.

REM-Fit is so confident in their product, that they also offer a 15-year full replacement guarantee. This further speaks for the high quality of this mattress. As always, we recommend reading the fine print in order to know exactly what is covered and what isn't.

REM-Fit Mattress Delivery 

The REM-Fit 500 Ortho mattress comes with a free next day delivery within the UK. In order to receive this benefit, you need to place your order before 1 pm. The delivery slots are 8:30 - 17:30, Monday - Friday.

The REM-Fit 500 Ortho Mattress comes neatly rolled and boxed, for your convenience. The free delivery includes delivery of the products to the front door of the building at the address provided when placing the order.

Delivery REM-Fit 500 Ortho

Additional Services

There are additional services such as room delivery, 2 man delivery, old mattress removal etc. All these are additional services provided and have extra costs attached to them.

  • 2 man delivery team
  • Room delivery
  • Old mattress removal

Payment Options

REM-Fit accepts various payment methods including;

  • Paypal
  • Credit & Debit card
  • Amazon pay
  • Divide buy* - 0% financing option
  • Klarna

REM-Fit 500 Ortho Mattress Price and Sizes

Here you will find the standard prices of the REM-Fit 500 Ortho mattress. If you’re looking for a deal, head to our DISCOUNTS PAGE.

SIZEDIMENSIONSPRICE (excl. discount code)
REM-Fit 500 Ortho Small single size mattress75x190x25 cm£799
REM-Fit 500 Ortho Long small single size mattress75x200x25 cm£849
REM-Fit 500 Ortho Single size mattress90x190x25 cm£799
REM-Fit 500 Ortho EU single size mattress90x200x25 cm£849
REM-Fit 500 Ortho Small double size mattress120x190x25 cm£949
REM-Fit 500 Ortho Double size mattress135x190x25 cm£999
REM-Fit 500 Ortho EU double size mattress140x200x25 cm£1,049
REM-Fit 500 Ortho King size mattress150x200x25 cm£1,049
REM-Fit 500 Ortho EU King size mattress160x200x25 cm£1,199
REM-Fit 500 Ortho Super-king size mattress180x200x25 cm£1,199
*prices and availability may be subject to change 

REM-Fit Mattress Customer Reviews 

We always recommend taking a look at what some customers had to say. You can find these either on the site itself or from third parties. Many happe customer reviews mention how supportive this mattress is, even for heavier people.

REM-Fit 500 Ortho Mattress Awards 

The REM-Fit 500 Ortho Mattress was awarded the Best Buy award from Which?. If you want to see where this top quality mattress ranks, especially for back pain, see our Best Mattress for Back Pain UK page. Here we list our top picks.

  1. The Mattress Guide Best Mattress for Back Pain
  2. Which? Best Buy


  • The REM-Fit 500 Ortho mattress fits all types of bases. Adjustable beds, divan beds, platform top base and slatted bed frames. This makes it super convenient.

Should I Buy a REM-Fit 500 Ortho Mattress? 

To summarise this REM-Fit 500 Ortho mattress review we have to say the following; the REM-Fit 500 Ortho Mattress is an award-winning, multi-layered hybrid mattress. It includes 2000 encapsulated springs that move individually, providing constant support, even when you move. The REM-Fit 500 Ortho Mattress also includes a zoned, open-cell memory foam layer, that not only cradles and moulds to your shape but also regulates temperature. It is a firm feel mattress with a silky soft feeling mattress cover. 

If you’re looking for a firm mattress to cure those aches and pains, or if your looking for a hybrid mattress with minimum motion transfer, then this may be the mattress for you. The REM-Fit 500 Ortho mattress is also long-lasting and will be in tip-top shape for a minimum of 15 years. This is a great option if you looking for:

  • A firm mattress to aid with a backache.
  • A mattress with fast delivery and an excellent guarantee
  • A hybrid mattress with many sturdy springs.
Up to 50% OFF
remfit discount code voucher uk
REM-Fit Discount Voucher Code
Save up to 50% on mattresses and get 2 free pillows with every mattress order. | Save up...Show More
Save up to 50% on mattresses and get 2 free pillows with every mattress order. | Save up to 50% on pillows and mattress protectors. T&Cs apply. Show Less
REM-Fit 500 Ortho Mattress Review
Material Quality
Motion Isolation
Edge Support
Sex/ Bounce
Company Reputation
Value for Money
100-night risk-free trial
15-year warranty
Free delivery and returns
2000 full-sized springs
No mattress handles

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Material Quality
Motion Isolation
Edge Support
Sex/ Bounce
Company Reputation
Value for Money
Final Score


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