References

Latest References

An image showing behind the scenes of our temperature regulation tests on the Saatva Classic mattress, with our tester lying on the mattress and our Managing Editor of Sleep, Claire Davies' iPhone attached to our thermal imaging camera to track the heat absorption and heat dissipation capabilities of the Saatva Classic over a period of 30 minutes.

Our thermal tests show this specific type of mattress helps you sleep cooler than any other — here's exactly what to look for

By Eve Davies published

Our new and improved mattress testing data shows hybrid mattresses are the best at keeping you cool at night. Here's how they do it and what hot sleepers should look for when bed shopping.

Mattresses
Image is split into four squares, with each square showing a different aspect of our mattress testing process. In the top left hand corner one of our mattress writers performs an effective sleep space test on the DreamCloud Classic mattress. In the top right hand corner you can see our pressure relief weighted indentation test in process, where we are using a standardized stack of weights to measure how much the mattress indents (how well it contours) and how quickly it recovers (how responsive it is). In the bottom left hand corner another our of mattress testers lies on her side on the Saatva Classic mattress during a pressure relief test, with a digital laser projecting a straight line onto her back so we can assess how well the mattress supports spinal alignment. In the bottom right hand corner, one of our mattress testers lies on a hybrid mattress during a thermal regulation test. In the image you can see we're using a thermal imaging camera to measure how much heat the mattress absorbs and how quickly it dissipates that heat.

How we test mattresses

By Claire Davies published

A complete guide to our new methodology and scoring system

Mattresses
A close-up shot of the white and blue cooling gel-foam used in mattresses

What is gel-foam in mattresses?

By Frances Daniels last updated

Gel-foam mattresses are different to pure memory foam mattresses — here’s what you should know and whether you should buy one.

Mattresses
What is Amazon Prime

What is Amazon Prime? Everything you need to know

By Louis Ramirez last updated

Amazon Prime is more than fast shipping. If you're wondering what is Amazon Prime — here's what you need to know.

Tech
Our mattress tester wearing black silk pyjamas laying on her back on the Birch Elite mattress on wooden bedframe in warm lit bedroom with bedside plant, chair, unit, lamp and checkred rug

What is pressure relief in a mattress?

By Frances Daniels published

Pressure relief is a key factor when choosing a mattress for you. But what exactly is it? Find out more here..

Mattresses
The Birch Elite Natural Mattress on a bed frame in a bedroom. A member of our testing team lies on the left side of the mattress on her back, while another mattress tester sits on the right hand side of the mattress. They're testing the motion isolation, to determine if one person getting into a bed disturbs the other

What is motion isolation in a mattress?

By Frances Daniels last updated

Good motion isolation is found in a lot of memory foam and hybrid mattresses, but what is it and why do couples need it?

Mattresses
The image shows an woman smiling as she places her hands on the surface of a white mattress while she crouches next to it

What is Tencel fabric and how does it keep you cool?

By Eve Davies published

Hot sleeper? Here's why you should add Tencel to your checklist when looking for a new mattress and bedding.

Mattresses
A tester sits on the edge of the mattress to test the sturdiness of the foot of the bed.

What is edge support in a mattress?

By Frances Daniels last updated

Good edge support is found in beds with high-quality designs, but what is it and why is it important when buying a mattress?

Mattresses
A collage of four pictures of mattress materials. Four mattress coils standing up (top left). Layer of individually wrapped coils (top right). White GlacioTex cover (bottom left). Four slabs of mattress foams (bottom right).

What is temperature regulation in a mattress — and why is it important for sleep?

By Eve Davies last updated

Too hot (or too cold) at night? A mattress with good temperature regulation can go a long way in helping you sleep soundly. Here's what we learned during our latest visit to 3Z Brands in Arizona.

Mattresses
A member of our mattress testing team jumps onto the Nolah Original All Foam Mattress on a bed frame in a bedroom. She dives onto the bed ready to hit the cushioned comfort layers

What are mattress comfort layers and why are they important?

By Becky George last updated

Don't know what a comfort layer is in a mattress? Our expert guide explains it all, including how to pick a bed with the right comfort layers for your sleep needs.

Mattresses
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