Sealy Harlow Ortho Plus Mattress Rated 5/5 based on 154 customer reviews
Sealy Harlow Ortho Plus Mattress helps with

Sealy Harlow Ortho Plus Mattress

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£244.09
sleeping cat
10p per sleep based on average mattress lifespan
Single3' x 6'3
Small Double4' x 6'3
Double4'3 x 6'3
King Size5'0 x 6'6
Super King6'0 x 6'6
With Divan Bed Set
With Ottoman Bed Set
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snooze score logo Find out if the Sealy Harlow Ortho Plus Mattress is suitable for you by answering 4 simple questions. Take the quiz

Why Our Sleep Experts Loved It

becky says

This memory foam mattress is part of our Simply Sealy collection, which is crafted from high quality materials using cutting-edge technology. The plush fillings work with the specially designed low-friction cover to provide you with a comfy night's sleep that will help conform to your natural shape and sleeping position. With the PostureTech Core Support system you also get optimum support right where you need it.

Everyone loves sleep, that's why Sealy have created this sleeping surface that feels like pure luxury: a plush memory foam mattress. The Simply Sealy memory mattress soothes aches and pains after a long day and provides complete comfort for the body thanks to a PostureTech Core Support system that gets firmer as pressure increases. The cover is micro-quilted to secure the sumptuous fillings and ensure greater durability, and it's micro-quilted so you can easily rotate it from top-to-bottom.

How does it feel?

Firmness of The Sealy Harlow Ortho Plus Mattress depends on bodyweight. Adjust your weight below to get an indication of how it may feel. Remember though that firmness is entirely subjective.
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Key Performance Indicators KPI question mark
Of The Sealy Harlow Ortho Plus Mattress
Our Key Performance Indicators are produced using a combination of specification-heavy algoritmic data points and user reviews.

Key Performance Indicators KPI question mark

Our Key Performance Indicators are produced using a combination of specification-heavy algoritmic data points and user reviews. For example, a firm pocket spring support layer is more breathable and offers better back support but may prove unsuitable for side sleepers, the reverse is true for a soft-medium tension reflex foam support layer. This is one of 100+ datapoints considered when generating the below ratings.

Suitability

*Assuming average weight, suitability will vary dependant on body type, use the quiz above for a more tailored guide.
  • Back Sleepers
    ★★★★★
    ★★★★★
  • The amount of support offered from a mattress will vary depending on the firmness of the tension and the type of support layer used. Based on a person of average build.
  • Side Sleepers
    ★★★★★
    ★★★★★
  • If you sleep on your side you typically need a supportive tension that is not too firm, nor too soft. This is because your hips and shoulders need adequate sinkage.
  • Stomach Sleepers
    ★★★★★
    ★★★★★
  • Stomach sleepers need a reasonable amount of tension in the base support layer to adequately offer body contouring and help prevent aches and pains. Results will vary based on your build.

Performance

  • Breathability
    ★★★★★
    ★★★★★
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress
    ★★★★★
    ★★★★★
  • Certain materials like memory foam can make it difficult to move about on the mattress while you toss and turn. Same too for pillow tops which can create a cloud like sensation which can make manoeuvrability challenging.
  • Stability
    ★★★★★
    ★★★★★
  • Depending on the type of support layer in place can have an impact on stability, edge to edge support and roll together prevention. Pocket springs of a firmer tension will have better stability than open coil soft tension, for example.

Odour

  • Initial Odour
    ★★★★★
    ★★★★★
  • Materials in mattresses, particularly memory foam and rolled bed-in-a-box mattresses can have an initial odour, this is typically short term and reduces considerably within 24 hours.
  • Long Standing Odour
    ★★★★★
    ★★★★★
  • Certain materials inside different mattresses can produce a small odour. Typically this is short term rather than long standing but there are minor exceptions.

Brand Rating

  • Overall Brand Rating
    ★★★★★
    ★★★★★
  • This is based on community driven customer reviews tied to product reviews and grouped together at a brand level to produce a score.
Of The Sealy Harlow Ortho Plus Mattress
Brand: Sealy
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Customer Sentiment: Excellent
Guarantee: Good

Calendar Icon Radar Analysis Radar Analysis Question Mark

Radar Analysis looks at the product, brand and retailer against base norms established within the industry and determines where the product sits by way of established performance metrics.

What Makes The Sealy Harlow Ortho Plus Mattress Great?

A plush memory foam mattress, part of the Simply Sealy collection

Memory foam is one of the most desirable and in demand comfort layers around, outperforming others when it comes to sheer desire. This foam was first developed with NASA and was first used for commercial applications shortly after. The soft and body moulding properties of this layer makes it very appealing to those looking for a weightless nights sleep. Be aware however that temperature regulation continues to be an issue with this layer, though there has been improvement in recent years with additional cooling solutions offered through select ranges.

Memory foam soothes aches and pains after a long day

Memory foam has properties that adapt shape of your body, immediately recovering its original shape once pressure is no longer applied. It adapts to your movements without sinking, ensuring that pressure is not produced, but without the wrapping feeling which would otherwise cause unnatural posture.

Enjoy pressure point relief and complete comfort

Sealy's PostureTech Core Support system delivers optimum support

The PostureTech Core Support Spring System is a revolutionary and totally unique product that finally addresses the root cause of back pain and neck pain. The system is an innovative mattress design that will help your back by providing the correct amount of support and alignment, allowing you to sleep more comfortably.

PostureTech Core Support gets firmer as pressure increases

The PostureTech Core Support System is a revolutionary and totally unique product that finally addresses the root cause of back pain and neck pain. The system is an innovative mattress design that will help your back by providing the correct amount of support and alignment, allowing you to sleep more comfortably.

High levels of firm support where you need it

Firm Tension Support Mattresses are suited to those who prefer sleeping on their front and back. Typically sleeping on your back helps ensure the spine remains aligned throughout the night and is the most natural sleeping position that can prevent twisting and turning. A firm mattress ensures that a high level of support contours around your body, alleviating pressure across your entire frame in a more even manner than that of a soft mattress, most notably in the hips, neck and shoulders.Finally, if you are suffering from neck or back pain, a firm mattress can help alleviate these problems and result in a better and more relaxed sleep for many years to come.

Smooth knitted fabric cover for a luxurious feel

Knitted covers offer a good degree of breathability that helps keep the mattress cool while you sleep, particularly important for hygiene but also great for keeping you cool. 

Cover is micro-quilted to secure the sumptuous fillings

This mattress comes with a quilted cover. Many people overlook the cover as a need for consideration however, the right cover can add additional comfort and in the case of this one here, adds quilted comfort that offers a soft but hard-wearing cover that is both breathable and stylish.

Micro-quilting also ensures greater durability

This mattress comes with a quilted cover. Many people overlook the cover as a need for consideration however, the right cover can add additional comfort and in the case of this one here, adds quilted comfort that offers a soft but hard-wearing cover that is both breathable and stylish.

Easy-care and single-sided - no need to turn it over

A single sided mattress is typical for the industry and relates to how  a mattress has the comfort layer on one side of the mattress. only This means that the mattress only needs to be rotated rather than flipped. The benefit of single sided mattresses is that they require less upkeep in that there's no flipping, but also, there's less components involved in the creation which saves costs.

Simply rotate from top-to-bottom

Rotating the mattress remains an important step in maintenance. The comfort and support layers of a mattress settle over time and it is necessary to rotate at certain periods to help reduce risk of dipping while you sleep in the same patterns and locations across the mattress.

Depth: 22cm

22cm of mattress depth is enough to house a typical good quality spring system with decent support and comfort layers while also being thin enough to accessorise with standard mattress sheets. No need for deeper sheets and further purchases as a result.

5 year guarantee

A 5 year guarantee is quite rare in the industry and is a great indicator of the retailer beleiving in their product. Anything go wrong in the next 5 years, no drama, get it replaced.

Made in the UK

These are made and manufactured in the UK, meaning that they all meet the same exceptional quality and durability that we expect from genuine UK manufacturing.

PostureTech Core Support Springs

Providing even weight distribution, the PostureTech spring system feels soft then gradually gets firmer as pressure is applied. The entire spring unit is twice tempered, making it strong. Their Smaller diameter means they can fit more into an area, allowing for a more fine-tuned level of support.

Memory Foam

memory foam is one of the most well known materials used in the upper layer of mattresses. Memory foam basically contours to your entire body with moulding properties. Designed by NASA, this material rebounds to your touch and feels like you are floating on a cloud. Memory foam does not necesserily mean soft either, you can still have firm mattresses for those that want them with a bit of memory foam.

Knitted Cover

It is common in the industry to have a knitted cover, these covers can come in a variety of patterns but are typically hard wearing and do not present problems for consumers.

Pressure Relief

One of the big complaints when settling into a new mattress is that it does not feel as comfortable as they hoped, where this mattress shines is in the enhanced pressure relief that it offers. Each part of your body exerts different amounts of pressure against the mattress and through the use of springs and foams, these products are able to offer significant pressure relief as a result across the entire body.

Firm

Firm mattresses are great for those looking for an extra bit of support, either because they have a higher BMI and leanm toward the heavier side, or because they have joint and muscle pain and appreciate a decent amount of support while they sleep. If you are not actively looking for a firm mattress it may be wise to consider something else from the range that is perhaps closer to the medium firmness rating

22cm deep

An average mattress depth, enough room tom comfortably house a decent spring system and comfort layer. You won't need bespoke deep sheets or anything for this size of mattress

Single-sided

Single sided means only one side is comfy. Positives are you only need to rotate the mattress occassionaly rather than the more cumbersome rotate and flip. Downside is the lifespan of the product may suffer as a result, only marginal, but worth mentioning.

Handcrafted in the UK

Handcrafted in the UK means that the product is built here, by people being paid a fair and honest wage using certified and safe products of good quality and construction. UK manufacturing is some of th best in the world and all of that is reflected in this product

Fire Resistant

Fire resistant does not mean the product will never catch fire, rather, it will not go up in flames quite so quickly. Resistant to fire in the same way that I am resistant to kisses, sooner or later you end up giving in.

Approved by the National Bed Federation

The NBF is one of the most prestigious awarding federations in the industry, helped slightly by the fact that it is one of the only, however, it is still a great source of comfort knowing that this product holds approval by the team

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Customer Reviews For The Sealy Harlow Ortho Plus Mattress

Based on 154 reviews
5

Great firm mattress. You can tell the structure is high quality, judging by the material that the mattress is covered in and the useful handles on the sides to ease manouvering the product and turning it.I was a little concerned about the memory foam aspect, as previously a full memory foam mattress didn't suit my partner, it made him sweat quite a lot. However, we have had no problems with this.Overall, we have found this to be very comfortable and great value for money.

5

Not being able to compare, without trying loads of mattresses, you have to go with 'description and instinct'.It doesn't disappoint: it's firm, but not 'bone hard', very supportive and comfortable. I was a little concerned that the 'memory foam' top might be too warm, but I needn't have worried; it's fine. So, if like me, you prefer a firm mattress at a bargain price, then this is for you.

5

My former mattress was a cheap one by dreams, it was like sleeping on stones.This one on the other is another story. It's quite firm but very supportive. This is also my first memory foam mattress. I have sciatica flare ups which happen in random places and this mattress really helps me get comfy without feeling any pressure in the bad areas.I got this mattress while on offer so it was super expensive.

5

Firmer than I expected it to be. It is a very firm mattress. You don't sink into it. I like this and my back has been better. Feels like a quality product that will last. I was worried that I wouldn't like the memory foam but I can't really feel it, it just feels soft. Great mattress if you like a firm one ?

5

It has a wonderful finish, the handles on the sides make it easy to lift and move it around. The mattress is confortable and quite high, which is great ! No more squatting to seat on the bed!And the best thing is that my hip/lowerback pain are much better since using this mattress.

5

deep comfortable mattress, looks good and feels great a joy to sleep on usually when you buy a new mattress it takes a few weeks to get used to it but this one is great i feel as if Ive slept on it for years its so good, would defo recommend to friends

5

Firm but the memory foam creates the perfect amount of support. I always have a great nights sleep and the bed is very deep which i like as I have a low bed frame. Would certainly recommend to anyone with mild back problems. Great quality make.

5

I suffer from back pain due to arthritis in hips lower back. I was sleeping terribly due to the pain struggled to get out of bed on a morning. Since buying this mattress things have improved immensely. Just wish I'd bought it sooner

5

Good solid mattress. The memory foam takes some getting used to. I dont overheat and is comfortable.Aired as as described and on laundry day and no funny or lingering smell.I have has sealy before and wont change now or in the future.

5

I like the combination of both a spring matteress and also the added bonus of a top layer of memory foam . It is an excellent product and good value for money It is very comfortable and has provided me with a good night's sleep .

5

This is the comfiest mattress we have ever purchased and we have never slept so well. No rolling when turning over, no aches and pains on waking. I have never believed reviews that have said this. So pleased with our purchase

5

It's firm but to too firm, the memory foam at the top is softer so adds a nice bit comfort. Purchased mainly to help by husbands lower back problems, this has certainly helped, he feels much better and I like it too.

5

Previous mattress was a Sealy Posturepedic and I couldn't fault it so decided to stick with Sealy. If u like a firm mattress then this is perfect. Great support and a fab nights sleep.

5

My wife and I were looking for a firm bed and this one delivered. I was worried about buying online, the mattress is light so easy to move around but feels firm when you sleep on it. ?

5

Best nights sleep in years. I have Cronic back pain and hardly sleep at night. This mattress has enabled me to sleep almost all night without spasms or pain waking me up.

5

Great mattress looks great and the most important part is that its really comfy and i now get a great night sleep with out waking up in the morning with a stiff back.

5

I suffer from back problems especially in the mornings, but these problems are lessening since I started using my mattress, I'm very pleased with my purchase.

5

Its good stuff me my family enjoying.Speciality is i placed an order online about 4pm next day morning 10am we received the mattress in v Nice packing.

5

A very well made mattress at an excellent price. I was expecting to have to pay a lot more.A lovely level of support and a high quality finish.

5

This mattress replaced a Sealy Posturepedic mattress which we had used for 30 years and gave us very ggod service over the many years

5

The mattress is so comfortable and just feels good. It is very thick in depth and just feels good quality. I would recommend it.

5

Wasn't expecting much for the price but find it far comfier than my much pricier sprung mattress and the support is fantastic.

5

Wish I had changed my mattress sooner, my back soreness has seen a big improvement, this in turn has made my sleep my better.

5

Really great mattress! If you like a firm mattress with a bit of a spring then this mattress is ideal and super comfortable

5

Great mattress. Very good support. Suffering with lower back problems, improved massively since sleeping on this mattress.

5

Best thing about this mattress.. my back problems have vanished.. i no longer struggle to get out of bed, great support ?

5

Firm and comfortable, the memory foam adds a lovely soft feel whilst still being firm and supportive, great quality too.

5

Nice quality mattress, feels very supportive. Delivered incredibly quickly and the transport chap was extremely polite.

5

Mattress is very comfortable as you would expect from a reputable company. Easy to turn around. A wonderful item.

5

It's firm which is good for ppl with back pains. Layer of memory foam does make it comfyGood mattress overall

5

Well made and with the memory layer adds to the comfort. Supportive but not hard - which had been a worry for me.

5

very good support and a really sound comforting sleep every night, as someone with back problems its brilliant

5

Can't wait to go to bed its so comfortable even better than my last sealy matteress would highly recommend

5

Well made, good quality, top layer of memory foam added bonus as I have also got the one without the foam.

5

I like a medium firm mattress and this is perfect. Very comfy and seems to be supportive around the edges.

5

Aches and pains gone in the morning after having full support from this mattress. Just what we needed.

5

The support it offers is outstanding for the price and ensures a comfortable and restful nights sleep.

5

My bed feel warmer when I go to sleep.Feeling less back pain and I get a good sleep during the night.

5

Very comfortable and supportive, no more aching back. Well supported sides, excellent value for money

5

Getting a good nights sleep!Comfortable and not too firm.Easy to turn, with good handles on sides.

5

Best night sleep in years!! No aches in a morning any more and delivery fantastic really friendly

5

This is a very comfortable mattress. Memory foam makes it feel soft, even though it is firm.

5

Although very firm the mattress is very comfortable to sleep on if.you suffer from back pain.

5

Despite a padded upper face for sleeping in comfort, mattress wasn't too hot to sleep on.

5

we decided to opt for the zip together superking size this made it so much easier to handle.

5

Nice firm mattress. It's deep so makes the bed higher (and harder for 2yo to jump on!).

5

This is a quality mattress. It's firm, supportive and comfortable. Just what I wanted.

5

Sionce we got it, we have been sleeping like logs due to the comfortability of the matress

5

Being disabled this bed has all the quality I need for comfort and a good nights sleep.

5

Looks like they listened to previous reviews and added handles to help move the matress

5

Good firm mattress, does everything I expected and more. Would buy again and recommend.

5

I love the quality of this mattress, and the incredible value for money. Excellent.

5

Supportive, comfortable, the layer of memory foam feels like a touch of luxury

5

Firm but not to hard to sleep on thanks to the soft foam layer. Very pleased.

5

As good as our sealy mattress we had before that was long overdue replacing.

5

It is supportive, however I bought a goos down topper for extra comfort.

5

Due to back issues, this mattress is nice and firm. Perfect and comfy.

5

Not too heavy so I can turn on my ownVery comfortable Very good value

5

Lovely and firm and comfortable. Best mattress I have ever slept on.

5

This mattress is very comfortable and I would recommend it to anyone

5

well made, great support, very comfortable, light and easy to move.

5

Not quite as firm as I was expecting but firm enough and very comfy

5

It is great and unlike memory foam you can use an electric blanket.

5

Quite a firm mattress, good support. Happy with price and service.

5

Generally ok for an entry level mattress.Used on a kids bed.

5

I needed a firm mattress and this fitted the bill. Top class

5

The handles! Quite amazing how few mattresses include them.

5

You can sleep on it and seems to be keeping reasonably firm

5

matress is firm and comfortable, very good value for money

5

Really comfortable mattress and looks good. One happy Son.

5

overall the mattress gives a good comrortable nites sleep

5

Relaxing Mattress, nice quality, stitching is very good.

5

Very comfy bed comparing to other more expensive I had.

5

i think its suitable for hk ppl who love firm mattress.

5

Firm with great edge support but still very comfortable

5

The mattress is not too heavy. I can move it by myself.

5

i have just got it ,cant say what its like to sleep on

5

Looks good, quality of manufacturing seems like good.

5

Excellent value for money and it is very comfortable!

5

Felt very supportive and comfortable straight away.

5

Delivery was prompt and 2days earlier than expected

5

Does exactly what it says, well made slightly firm.

5

More than we expected for the priceVery comfortably

5

Its a decent mattress for the money I paid for it

5

Comfortable, supportive and great quality mattress

5

always very good quality with a SEALY MATTRESS!!!

5

IT IS NICE AND COSY ME AND MY LITTLE DOG LOVE IT.

5

Perfect mattress and definitely value for money.

5

Great firm mattress. Well made and comfortable.

5

My daughter loves it + sleeps better at night.

5

nice looking very good quality and very firm

5

A supportive mattress that looks good too.

5

Good comfortable night sleep with support

5

Best nights sleep ever! Would recommend.

5

Very comfortable mattress, good support.

5

Extremely comfortable and great quality

5

A good quality mattress at a good price

5

Ordered another one .Arriving Tuesday

5

Feels a quality product and well made.

5

great, comfy and firm, superb sleeping

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