References
Latest References
![Tom's Guide's Sleep Editor drops a 10lb weight onto a Helix Midnight Luxe mattress to test its motion isolation](https://cdn.mos.cms.futurecdn.net/vyZjZLFryaVkHNRbxEaXS8-320-80.jpg)
How we test mattresses: A guide to our review process
By Claire Davies, Julia Sagar last updated
How we select and test mattresses for our reviews and buying guides, and why you can trust our recommendations.
![Helix Midnight Luxe Mattress in a box](https://cdn.mos.cms.futurecdn.net/e4ptfvmojnVNcXQ7u7YcqF-320-80.jpg)
Are mattresses in a box worth it or a waste of money? I’m a sleep writer —here’s my take
By Frances Daniels published
Mattresses in a box are often cheaper and delivered quicker than traditional beds, but are they worth it? We take a closer
![A phone with the Plex logo in front of an out-of-focus background of movie posters](https://cdn.mos.cms.futurecdn.net/c5jTkriJnNWR4ZjEqfMock-320-80.jpg)
What is Plex? Everything you need to know
By Kelly Woo last updated
Plex is arguably the best media server app you can get, provided you have some digital movies and TV of your own.
![Nectar Memory Foam Mattress, which contains gel foam, on a yellow background](https://cdn.mos.cms.futurecdn.net/PzbAikmmm4Df987HUx8Xsh-320-80.jpg)
What are gel-foam mattresses and should you buy one if you sweat during sleep?
By Frances Daniels published
Gel-foam mattresses are different to pure memory foam mattresses — here’s what you should know and whether you should buy one.
![A woman lifts the edge of her white cooling mattress topper placed on top of a white mattress](https://cdn.mos.cms.futurecdn.net/f4RNxuHVrvYu92SDAfKm3Z-320-80.jpg)
What are cooling mattress toppers, do they work and should you buy one?
By Jo Plumridge published
Can cooling mattress toppers really reduce overheating in bed? We look at how they work, whether they're worth it, and who should and shouldn't buy one...
![Helix Midnight Luxe Mattress](https://cdn.mos.cms.futurecdn.net/7zHSoLBWYmtLDQXcrwY35G-320-80.jpg)
What are roll up mattresses and are they any good?
By Ruth Jones published
We explore the pros and cons of roll up mattresses, whether they’re worth it, and how they differ to roll-up floor beds.
![A woman tests the edge support of her new Siena Mattress by sitting on its edges.](https://cdn.mos.cms.futurecdn.net/Qr3x4WrFwxfQadvCKsMHvh-320-80.jpg)
What is edge support and why is it important when it comes to buying a new mattress?
By Frances Daniels published
Good edge support is found in beds with high-quality designs, but what is it and why is it important when buying a mattress?
![A woman sleeps on her back after practising Progressive Muscle Relaxation for sleep](https://cdn.mos.cms.futurecdn.net/i3CivmoWWAG8LY6m8joZHb-320-80.jpg)
What is Progressive Muscle Relaxation for sleep and can it ease insomnia?
By Rachael Penn published
There are lots of methods to help you get to sleep — Progressive Muscle Relaxation is one of the oldest. Here’s how it works if you’re having trouble sleeping…
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