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Dorma Full Forever Mattress Topper Review

TSA reviewer Connie Hack

Written By Connie

CPD Sleep Consultant

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15 April 2024 9 min read

In this Dorma Full Forever Mattress Topper review we're going to see whether this budget-friendly mattress topper can transform your old mattress into a sleeping haven! Here's all you need to know.

If you feel like your old mattress could do with a new life but getting a new mattress is too much, a mattress topper can solve this problem. We are here to help you find the best mattress topper to fulfil your needs. The Full Forever could be a good choice for an extra layer for a fuller and plush feel.

You will find toppers can add firmness and support to your bed (like memory foam toppers), or keep you cool (as with gel-infused memory foam toppers), or for added soft comfort that you get from cotton, feather, wool and a memory foam topper.


An icon depicting a cotton plant, illustrating a product that contains cotton material
High quality cotton
Cotton cover and polyester filling.
Adds a comfort layer to your bed.
an icon depicting straps included
Elasticated straps
Secure to the mattress.


Not very quiet
Topper is too crisp and rustles when moving.
An icon depicting chain links indicating low durability
Not for long-term use
Not as durable as memory foam.
No support
Not firm enough to give support.

Who is the Dorma Full Forever mattress topper for?

This mattress topper does not mould to your body shape therefore it is not adaptable. It is naturally hypoallergenic due to the cover being 100% cotton and super soft. If you find a memory foam mattress topper to be too firm, this is a great option for you to feel comfortable.

What do we use this product for?

When your mattress is a little too firm and could be improved with a soft-filled mattress topper, you can use this product to change the feel of your bed – it is a securely fit topper. It is the ideal solution for extra softness while having an extra layer between you and your mattress.

Features you should know about the Dorma Full Forever mattress topper

There are a few key selling points that you should be aware of before purchasing the Dorma mattress topper. From the cotton cover through to the recycled polyester filling and to the elasticated straps on each corner. So, depending on what you are looking for, we have summarised some of the top features of this product.

our reviewer testing the full forever topper by Dorma
230 thread count 100% cotton cover

With a thread count of 230, it is the optimal count for a product to remain soft and of good quality – especially with cotton. Using cotton for the cover keeps the product hypoallergenic and breathable which is ideal for hot sleepers.

30cm deep

It fits mattresses up to 30cm in depth so there is no reason why it cannot be secured to your mattress. Some mattresses can seem too deep for mattress toppers to be used, but this one will not add much more depth – only a few centimetres.

Elasticated cover straps

As previously mentioned the elasticated straps can reach around mattresses of up to 30cm, so it is suitable for a deep mattress. You will find that some mattresses do not have this, which makes them more liable to sliding on the bed.

100% spiral fibre fill with cassette construction

This mattress topper has cassette construction which simply means the stitching is used to form a grid/box. Having this keeps the filling in its own area so it does not move around the topper. The filling has even distribution across the whole mattress topper to help with the longevity and overall performance of the product. Being filled with spiral recycled fibre gives the mattress topper a plush bounce.

Recycled polyester fibre

While polyester is not the best material for the environment, Dorma uses recycled fibre from waste – eg plastic bottles – to reduce how much is going into landfills. It is part of a process to keep the products sustainable whilst still being durable. The fibres in this anti-allergy mattress topper are coated with Aegis Microbe Shield Technology to help prevent any bacterial growth.

Review of the Dorma Full Forever Mattress Topper

An image of a The Sleep Advisors reviewer laying on a Dorma Full Forever Mattress Topper

The purpose of this Dorma mattress topper is comfort over support, and after testing it we agree. It will not feel like you have a brand-new mattress, but it does have the ability to give you a good night's sleep. The softness gives it a luxurious feel while you are sleeping and smoothness over any bumps you may have in your mattress.

In terms of motion isolation and pressure relief, the Dorma mattress topper does not impact or change the performance of your mattress. If you are using it on a medium-firm mattress that can relieve pressure, then you will feel those benefits through these mattress toppers. However, if your mattress is super soft and comfortable, you will be getting even more comfort when using this product without any extra support.

The cover being cotton does keep the mattress topper breathable but overall I would suggest using this mattress topper in the colder months rather than when we have warm nights. It will definitely keep you cosy and warm if you get cold during the night – especially being sandwiched between the topper and your duvet.


  • Size: Single, Small Double, Double, King, Super King
  • Depth: 3cm
  • Cover material: 100% cotton
  • Filling material: 100% recycled polyester
  • Firmness: 3/10
  • Support: 2/10
  • Breathability: 7/10
  • Motion isolation: 2/10
  • Pressure relief: 5/10
  • Hypoallergenic: Yes
  • Removable cover: No
  • Care instructions: Machine-washable with mild detergent and tumble dry on low heat
  • Warranty: 1 year
  • Delivery info: Free; 3-5 working days within the UK, excluding the Channel Islands, same day click & collect

What we like about the Dorma Full Forever mattress topper

As a summary, we have narrowed it down to three points that you should take away with you when considering this product. Here they are:

What we don’t like about the Dorma Full Forever mattress topper

Depending on what you are searching for, you will find some disadvantages to using this particular mattress topper. We found that:

The common problems with the Dorma Full Forever mattress topper

You may find that the mattress topper can still move when you are in bed because there is no grip on the base and the sides are not secure. However, it is easy to solve this by using a fitted sheet over the top to keep everything in place.

The design can be uncomfortable so if you find this true for you, your best bet is to try putting a fitted sheet over the top to smooth it out. While others found it cool to the touch, others felt it made them hotter in bed so an additional sheet could help with that too.

Dunelm's customer service and company information

Delivery – Each product tells you what date your order will come on or before, it will be 3-5 working days. Alternatively, you can Click & Collect on the same day.

Payment – Dunelm accepts standard card payments, as well as PayPal (option to pay in three instalments) and Apple Pay.

Customer service – Choose to contact them through a form which will guide you in the right direction. This could be by using online chat, getting in touch with a store, or creating a message to send along with some of your details. 

With the live chat, it gives you an update on how many people are ahead of you in the queue so you can keep track of when you will be able to talk to customer service. Once you are through, they are extremely helpful and very polite.

Check the alternatives to the Dorma Full Forever mattress topper

A mattress topper can help to relieve joint pain or regulate your body temperature, and it can be hard to find the best mattress topper for you. Some provide comfort while others provide support. We know the Dorma mattress topper gives you comfort, but it may not be enough so we have found an alternative that can give you that little bit extra.

Silentnight Ultimate Deep Sleep Mattress Topper

Product image of the Silentnight Ultimate Deep Sleep mattress topper

This product may seem similar to the Full Forever mattress topper, and that is because it is. They are some of the best mattress toppers for a comfy night's sleep.

However, this one is deeper so can provide even more comfort than the Dorma topper.

The toppers feel super plush with extra softness, filled between the internal walls to keep it plump. This mattress topper is labelled as hypoallergenic due to the cotton – which also makes it soft to the touch.

The Deep Sleep mattress toppers are not as crisp as the Full Forever so you can have a quiet sleep. And in terms of price, the Deep Sleep is firmly in the budget-friendly category!

The only downsides are that it doesn't have the best motion isolation and, just like the Full Forever, it doesn't have a removable cover.

We have a full review of the Silentnight Ultimate Deep Sleep Mattress Topper.


An icon depicting a washing machine, illustrating a product that is suitable for machine washing
Washing machine friendly
Easy maintenance.
an icon depicting straps included
The straps help you to secure the topper.
an icon depicting a finger of a hand pressing a surface, illustrating a pleasant usage
Soft to the touch and pleasant to sleep on.


An icon depicting a non motion isolating product
Poor motion isolation
The motion isolation needs improvement.
An icon representing a non-removable cover
No removable cover
Cover is not removable.

What makes this product better than some other similar ones?

The Dorma Full Forever mattress topper is the perfect choice if you are wanting a product to smooth out any lumps in your bed or to hide any uncomfortable springs, without changing the purpose of your mattress. Many mattress toppers can completely transform your bed, whereas this one will give subtle improvements. With a memory foam mattress topper, you may find that they can be too firm for what you are looking for.

Is Dorma Full Forever mattress topper eco-friendly or sustainable?

The mattress topper is part of Dunelm's Conscious Choice collection which is full of products that are more sustainable. This product in particular is made from recycled polyester and

Not only is the Full Forever mattress topper in the Conscious Choice range, a large number of their products feature in this collection. Dorma is making sustainable choices, using sustainable materials to become a better brand.

How did we test the product?

our reviewer putting the Dorma topper on the bed

Every product we review needs to be tested by us to give you the most accurate observations to decide on which product is the right one for you – in this case the right mattress topper. To put it broadly, these are the tests:

  • Visual inspection
  • Hands-on inspection
  • Measured tests

However, to break it down clearly, these are the tests every mattress topper will undergo in order to make comparisons:

Overall impressions of the product after the testing

In our opinion, the Dorma topper is more like a mattress pad than a mattress topper, this is due to it being a thin pad-like layer instead of inches thick as you would find with a memory foam mattress topper or feather mattress topper. This does not mean it is not a suitable mattress topper for you. After testing, we can confirm that it is the ideal product for smoothing out any discomfort in your mattress.

If you like the firmness of your mattress, you can still feel the mattress underneath this product so it is just a case of an additional layer rather than transforming your mattress. However, if you need a lot of padding to balance out your mattress, you may need to look for an alternative with a larger depth.

Being just a few centimetres deep, we do not think it will be full forever' because the fibres will wear down after long use, so it will need to be replaced every couple of years. It might be worth investing in a more expensive choice that will last longer if you are wanting a long-term solution, rather than a budget-friendly one.

It is not the best for moisture management for those who are hot sleepers, but it is one of the best mattress toppers for easy cleaning and low maintenance – no need to wipe with a damp cloth, simply pop it in the washing machine.

Whether you are after a Super King or a Small Double, there is a mattress topper for every bed that will provide you with softness and keep you warm – it is like having a duvet underneath you when you cosy up in bed. Combination sleepers – do keep in mind that it is very crisp and rustles when you move at night.

But after reading our Dorma Full Forever Mattress Topper Review, what do you think? Let us know in the comments!

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FAQs about your Dorma Full Forever mattress topper

While we have explained our thoughts on the Dorma Full Forever mattress toppers, you may still have some unanswered questions – we will try to cover everything below:

Is Dorma Full Forever mattress topper suitable for allergy sleepers?

In short, yes. However, there are options that are 100% naturally hypoallergenic. This mattress topper has a cotton cover which is anti-allergy but with a synthetic filling. It can be washed regularly to keep fresh.

Should back or side sleepers use the Dorma Full Forever mattress topper?

If your mattress already provides you with firm support for spinal alignment then there is no reason why you cannot have this for extra comfort.

Will stomach sleepers find the Dorma Full Forever mattress topper comfortable?

Yes, it will not counteract your sleep position.

Does the Dorma Full Forever mattress topper have a cover?

No, but it is still machine-washable.

Is the Dorma Full Forever mattress topper vegan-friendly?

Yes, it is, neither cotton nor recycled polyester contains animal by-products. Unlike feather or wool alternatives.

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About the author

As a CPD certified Sleep Consultant I know how important sleep is. And as a combination sleeper, I have found it difficult to get products to suit my sleep style. I have more than 2 years product testing experience with The Sleep Advisors which means I have slept on, with and under more than 500 products with varying degrees of success. This is added to more than 2 years experience as a product reviewer for Closer, Heat and Grazia magazines, so I've got a rigorous process. I love sharing my sleep testimonials with our readers and hearing their experiences too.
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