Welcome to the Rest Assured bed buying guide. For over 115 years we’ve been mastering the art of bed making using the finest handcrafted methods, so we know a thing or two about what goes into a mattress that helps you sleep better and lead a healthier lifestyle.

We like to keep things simple, so this short guide will give you all the key things you need to know when buying your new bed and mattress.

You spend a third of your life asleep in bed. That’s why it’s so important to invest in a mattress that will deliver unbeatable comfort for years to come.

It’s received wisdom that you change your mattress every 8 years. This is a long time, so finding a mattress that doesn’t sag and tear through its duration is really important.

Investing in good sleep is the same as investing in good health – both long-term and short-term. Sleep is intrinsically tied to mental and physical performance. Whereas poor sleep can lead to a higher risk in various diseases, from obesity to strokes; we believe that good sleep can truly enhance your life, improve your mental well-being and help you reach peak performance.

A quality-made mattress will give you everything you need for a great night’s sleep. As more and more research shows us how vital sleep is, the importance of a good mattress should not be underestimated.

Comfort is very subjective and we would strongly recommend that you visit your local Rest Assured stockist to try a few of our beds for yourself.

If you share your bed with a partner it is important that you try the bed together to ensure you are both comfortable and supported.

Don’t just sit on the edge and bounce up and down, actually lie down and stay there for a while. Don’t be embarrassed about lying on the beds in the showroom – that’s what they are there for.

Pocket spring support system

Unlike open coil mattresses, which are made from one long piece of wire that is coiled into hundreds of springs, pocket spring mattresses contain thousands of individual springs that are completely independent from one another.

When you lay on the mattress each spring responds individually to the contours of your body. Pocket Springs are usually glued together above and below the springs. At Rest Assured, each spring is carefully packed into a pocket and glued together at the centre. This allows the springs to move completely independently to those around it giving every square inch of your body unique support.

Pocket springs are also ideal if you & your partner are different sizes as the springs protect against “roll together”. As pocket springs provide exceptional support, they are also effective if you or your partner are a little on the heavy side.

As a general rule, the more pocket springs that there are in a mattress, the better the support. Comfort however is very subjective and we strongly recommend that you visit one of our stockists to try the beds for yourself.

British Wool

Our British Wool Collection mattress are British born and bred. The Cheviot wool we use originates from the beautiful countryside on the borders of England and Scotland.

Then in Lancashire, our bed-making experts hand layer, craft and test our mattresses to ensure we get the highest quality outcome every time.

There are a number of benefits to British Wool that helps you enjoy a better sleeping experience:

  • Breathable. Wool adapts to its environment and has insulating and breathable properties, to help keep you warm in the winter and cool in the summer.
  • Springy and durable. Cheviot is a soft yet sturdy fibre that’s highly durable – the perfect material for a mattress.
  • Sustainable. Wool is a sustainable resource that won’t cause detriment to the future of our planet.


Our natural comfort filling is a plush blend of silk, cashmere and wool for those who are looking for a luxurious 5-star sleeping experience.

Selected natural mattresses come with a choice of soft, medium and firmer firmness ratings to suit your sleeping style.


Blended natural latex, the “milk” of the Hevea Brasiliensis tree, is processed to create a plush comfort layer. The latex complements the responsive action of the springs, supporting your body and moulding to your contours.

Latex is naturally hypoallergenic and is also aerated for effective ventilation. Our latex mattresses are extremely resilient so do not need to be turned - simply rotate from head-to-toe.

Memory foam

As you lie on memory foam, it responds to your body temperature and moulds itself to your contours, creating a cocooning-effect that gives the optimum level of support and comfort.

When you get up, it returns to its original shape, hence the name. An added bonus is that you’ll never have to turn the mattress - simply rotate from head-to-toe.

Our divans are designed to work in harmony with our mattresses, so you can get the feel and storage options that are right for you.

Always remember that a ‘bed’ is a mattress and a base working together, you should not consider them in isolation and should ideally always try them together.

We always recommend you buy them together because the two are designed and manufactured to complement one another in terms of support.

Drawer options

Our divan bases can incorporate storage drawers in various configurations to suit your preferences and your room. Our single divans come with no drawer/2 drawer storage, while double to Super King come with all storage options. Each drawer can hold up to 15kg.

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Continental drawers

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2 drawer

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2 drawers + 2 continental drawers

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4 drawer

Ottoman storage

The complete storage solution. Ottoman storage makes the most of all the space under your bed. It opens up from the front, lifting the entire surface to reveal enough storage room for everything from bedding and curtains, to books and shoes. Ottoman storage is available with our double, king and super king divans.

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1/2 ottoman

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1/2 ottoman continental

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1/2 ottoman + drawer

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Full ottoman


Minimum Recommended

Mattresses over 30kg are suitable on all sized Silentnight Group Ottomans

Maximum Recommended

All Silentnight Group Mattresses greater than 30kg have been tested and are suitable for use with all our Ottomans. Our heaviest Mattress weighs 76kg and we do not recommend combining Mattresses above this weight with our Ottomans.

Mattresses are labelled with ‘firmness ratings’ to give you an indication of what to expect.

At Rest Assured, we offer three different firmness ratings:

The below sizes relate to the overall width of the mattress. Below is a breakdown of the different sizes and their approximate imperial equivalents: