Sealy Posturetech Supreme Mattress Rated 4.46/5 based on 24 customer reviews
Sealy Posturetech Supreme Mattress helps with

Sealy Posturetech Supreme Mattress

Add to product comparison
Questions: Read 6 Questions
4.5/5 - Read 24 Reviews
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
mattress quiz iconIs the Sealy Posturetech Supreme Mattress suitable for you? Find out! Take the quiz


becky says

The Sealy Posturetech Supreme Mattress is a new favourite for customers of the popular retailer, Dreams. This mattress has amassed plenty of reviews in recent months and for good reason. For those that don't know, the Sealy brand is one of the most trusted within the industry and is nowadays part of the Silentnight group, making many of the fillings and features between mattresses within the group being interchangeable.

The Sealy Posturetech Supreme Mattress is a firm tension mattress that is best suited to those that like the firmness by means of preference, or, are looking for that orthopaedic support that will help with back and neck pain.

What makes this mattress stand out above others in it's price point is the addition of latex fillings. Latex fillings give you much of the same comfort as a memory foam layer but with non of the downsides. To start, latex doesn't get too hot, nor too cold, allowing you to get a great nights sleep that is both soft and squishy while having better temperature regulation than memory foam.

How does it feel?

Firmness of The Sealy Posturetech Supreme Mattress depends on bodyweight. Adjust your weight below to get an indication of how it may feel. Remember though that firmness is entirely subjective.
weight description image
Key Performance Indicators KPI question mark
Of The Sealy Posturetech Supreme 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.


*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.


  • 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.


  • 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.

Customer Photo Submissions

Take a better look at how the Sealy Posturetech Supreme Mattress will look in your room

customer photo
Of The Sealy Posturetech Supreme Mattress
Brand: Sealy
Retailer: Dreams
Delivery Time: Average
Delivery Charge: Excellent
Customer Sentiment: 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 Posturetech Supreme Mattress Great?

Posturetech spring mattress

Exclusively to Sealy, the posturetech range offers enhanced comfort and support using their patented spring system

Latex fillings

Latex is a luxurious material of natural origins and is one of the better materials for mattress construction due to it's softness, breathability and resilience. You will find latex often used as a top comfort layer and occasionally used as a core/base layer due to it's additional supportive properties.

Comfort Grade - Medium

A Medium firmness mattress is the most common build offered due to the range of suitability offered in such a mattress. This type of mattress will be better suited toward averagely weighted people, while lighter people should opt for a medium-light, and heavier people considering a medium-firm.

Smart Fibres

The smart fibre comfort layers sit at the top of the mattress above the springs or reflex foam (depending on model) and offer a breathable layer to help regulate temperature throughout the product and keep you cool while you sleep.

Rotate Regularly - Rotate head to toe weekly for the first three months, then every month thereafter

Your mattress should be rotated on a regular basis as this is the easiest way to prolong and increase the longevity of your mattress. The main benefits to regularly rotating your mattress is the continued support and comfort while reducing any risk of sagging that may otherwise occur

Sealy Care Guide

An easy-care guide will provide a walkthrough for keeping mattresses clean and dry. Provide instruction on rotating and/of flipping if necessary. Keeping furniture stable and safe where required.

About Sealy

Sealy has divisions across the world with renowned manufacturing within the high-end bed and mattress segment for over 100 years. For the UK division of Sealy, the mattress factory is inset within the heart of Cumbria which makes an impressive 3500 mattresses per week.

Comfort Grade - Firm

If you find yourself suffering from back pain then you may want to look at an orthopaedic (fancy word for firm) mattress like this one here. Firmer surfaces put less stress on muscles while sleeping which might be exactly what you need to help your back

Latex layer

Latex is a luxurious material of natural origins and is one of the better materials for mattress construction due to it's softness, breathability and resilience. You will find latex often used as a top comfort layer and occasionally used as a core/base layer due to it's additional supportive properties.

Luxurious soft knit fabric

There is nothing worse than an uncomfortable night’s sleep where you toss and turn all night, wake up tired, and feel like you have to drag yourself through the day. The solution -  sleeping on a soft knit fabric mattress cover can help you get a restful nights sleep due to their extreme softness combined moderate stretch.

Single sided - Rotate head to toe weekly for the first three months, then every month thereafter

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.


This product is unlikely to cause any sort of allergic reaction. Ideal if you suffer from any sort of allergy problems

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.

Load more specifications

Customer Reviews For The Sealy Posturetech Supreme Mattress

Based on 24 reviews
Quality, comfortable mattress

This is the probably the third or fourth Sealy mattress we have bought over the years - we have never been disappointed. This particular purchase was to replace the 30 year old mattress we have had since we were married, that had been relegated to the spare room - it needed replacing ! Our current mattress in our main bedroom is a king size posturetech Sealy mattress which is extremely comfortable and we thought any house guests deserve the same. Both myself and my wife have various arthritic joints and the mattress gives good, comfortable support when sleeping. I have slept on the new mattress a few times now, and would rate it's firmness as definitely the firmer side of medium, rather than the 'medium' stated - but I have always preferred a firmer mattress so no complaints from me. To sum up, a well made mattress, reasonably priced for the quality, and most importantly, comfortable and supportive.

Dreams but name, dream by nature!

Due to COVID we bought this without being able to try it. Great purchase so comfortable. That said the best bit of the experience was dealing with Dreams. Fully kept us up to speed with progress of the dispatch. Sent us a bag to put our old mattress in and delivered on time. Again they kept us up to speed on delivery. The deliver guys were excellent and made a COVID secure delivery. We are so appreciative. We had put off getting a new mattress after being let down by another company. We both said if we had known how Dreams would operate we would have been having a better sleep for months by ordering the new mattress months ago!

Supremely comfortable quality mattress.

The mattress arrived and was delivered safely to the room it was to be used. It was quite cumbersome to lift alone but doable. The mattress is extremely comfortable and I have had weeks of the best sleep I've had in years. My parents have also used it when visiting and has allowed my ill mother to get a full nights sleep for the first time in two years. The only drawback is that I am fairly sure its already developing a dip on one side (I am a large man so this is somewhat understandable). I move around the bed and no other dips have developed.

Comfortable night sleep finally

After spending a fortune on a different mattress that proved so unsupportive and uncomfortable, I made the decision to buy a Sealy again from Dreams and havent looked back. Not only was it a cheaper purchase, making it excellent value for money, Im so pleased with it, I spend more hours in bed now rather than getting up in the night because I cant sleep. I use the mattress on top of a slatted base. It works well. Highly recommend this mattress for good support, comfortable sleep, value for money.

Great support and comfort

Ive had this mattress for about 3 weeks now and although it took a couple of nights to get used to as its quite a bit firmer than my old mattress, but now Ive adjusted to it Im getting a much better night sleep than before, and its alleviated any aches and pains I used to get from my old one.

Great mattress

I was wary of ordering a mattress without trying it in store, but I had every confidence in Stephanie who asked us to try the diagnostic beds first. We had a choice and she guided us in which one to buy. Very happy with my purchase

Absolutely Fantastic

I had to replace my 20 year old mattress and was dreading it. Dreams help me work out which mattress would suit me best and delivered in time and without any fus, thank you. New mattress is super comfortable, very happy!

Good back support.

I bought this mattress to replace one of the same brand which was well past it's replacement date. It provides excellent support for my back and a high level of comfort. Money well spent.

New matress

Is comfortable but not as comfy as thought it would be. Well made though and fits my new bed perfectly. Is nice and firm and looks well made so should last a few good years

Perfect fit

Bought this mattress to replace an older one, it is very well made and we are very pleased with it. Delivery was on time as promised.

Sealy mattress

It is the most comfiest mattress I have ever bought, suits our needs and is the best nights sleep Ive had for a while.

Does not disappoint, very impressed

Delighted with this mattress. Very supportive and firmness just perfect. Would highly recommend. Well worth the wait.

Great mattress

I brought this got my mum & dad, they say its the best bed they have ever slept on, good support for them both

Supreme matress

Great and very comfortable. Staff helped immensely with choice and it was a good one. Recommend Dreams anytime.

Sealy mattress

Lovely and comfy. Only gripe is the turning weekly as I find this very difficult to accomplish on my own.

Top Quality and Comfort

Very happy with our choice and the quality of this Sealy Mattress. We have been getting quality sleep.

Body rest by your mattress .

It is a quality product fit for purpose providing a good nights rest. Sealy aids to good bed rest .

Very comfortable.

I bought a sealy mattress a month ago and it is first class a very good well spent.

Sealy mattress

Very comfortable and gives me a great nights sleep. Not too hard or too soft

Great matresss

Well impeessed no more back ache, a great buy and a gtreat product received.

New bed

I daughter is very happy with her new mattress and sleeping very well

Load more reviews
Leave review

Questions and Answers About The Sealy Posturetech Supreme Mattress

Prospective customers had the following questions about the product

Hi, my husband suffers with lower back problems , what mattress would best suit him

Answer: The Sealy PostureTech Supreme provides Zonal Support which will allow the spine to be supported and aligned, maintaining its natural shape - as a result its likely that this mattress may be good to support his back.The right level of support in a mattress is very subjective and is down to the individuals preferred comfort. We would recommend going into one of the stores and trying a few mattresses to see which would be most comfortable and supportive.

Hi I suffer from fibromyalgia and am in constant pain, which causes me to spend a lot of time in bed .I'm also a larger lady so I need a mattress or bed that will support me and last with being used so much. thanks in advance

Answer: This Sealy mattress is great for providing optimum support during the night. If you are unsure about which mattress will be right for you, we recommend you visit one of the stores to try the mattresses out before you purchase. We also have a Sleepmatch machine that will use sensors to measure your body and recommend the perfect mattresses for your sleeping position and body type.We hope this helps.

Can you remove the old mattress

Answer: Yes, we remove mattresses and bed frames at an additional cost through the recycling service.Please add this on to your order in checkout.Thank you.

How many pocket springs does this mattress have ?

Answer: This is a traditional spring mattress and will have a zonal support system of up to 660 springs within the mattress.Many thanks for the question.

Does this mattress need turning

Answer: This is a rotate often mattress.Thank you.

Load more questions
Ask question

Product Relevant Videos

Video material related to the specifications of The Sealy Posturetech Supreme Mattress

Latex Mattress Benefits
Latex Mattress Benefits
By Pure Latex Mattress
What is Hypoallergenic?
What is Hypoallergenic?
By Karen Kelley Perkins
Waking Up On A Sealy Posturepedic
Waking Up On A Sealy Posturepedic
By Sealy SA
What is Latex?
What is Latex?
By Winstons Beds

Customers Also Purchased View More From Dreams

Latest Advice and Guides Your Questions Answered

Everything You Need To Know About Mattress Fillings
Soft and Squishy Memory Foam
Simple Mattress Buying Guide