References
Latest References
![Two Tom's Guide sleep staff writers sit on a mattress after testing its support core](https://cdn.mos.cms.futurecdn.net/AvMFL66vDzmutULjBS78H-320-80.jpg)
What is the support core in a mattress and why is it important?
By Rachael Penn published
The support core is a crucial element of every mattress – here's why, how they work, plus how to pick a mattress with great ground-up support.
![Tesla Model 3 parked in charging station](https://cdn.mos.cms.futurecdn.net/HqtjAwQFP7k4NyQfFgQoV6-320-80.jpg)
These are the Tesla wait times for every model
By Tom Pritchard last updated
Thinking about getting a Tesla? Here's the lowdown on Tesla wait times.
![Woman in nightclothes sat on GhostBed Luxe mattress](https://cdn.mos.cms.futurecdn.net/ufpDu9pGL3FQ5pPYsAPXpG-320-80.jpg)
These are the best cooling mattress materials for very hot sleepers
By Jo Plumridge published
Cooling mattresses rely on different materials to keep hot sleeps cool all night long — these are the best ones.
![What is Amazon Prime](https://cdn.mos.cms.futurecdn.net/LzpjEDErDFipjoaRYxakCM-320-80.jpg)
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.
![A woman's hand feels a memory foam mattress to check if it needs replacing](https://cdn.mos.cms.futurecdn.net/pJ7qQhYgx24BzK6dmWfFqL-320-80.jpg)
Are memory foam mattresses worth it or a waste of money? I’m a sleep writer — here’s my take
By Ruth Jones published
Memory foam mattresses are typically cheaper than hybrid beds and offer cushioned comfort — but are they worth your money?
![A pair of hands on a mattress, one hand on the top, the other holding the base, checking the mattress firmness and depth](https://cdn.mos.cms.futurecdn.net/bkEXwAbUNYLJDcV7QAQv5K-320-80.jpg)
Should you sleep on an 8 inch mattress or are they too thin to be comfortable?
By Ruth Jones published
Want to know if a thin 8 inch mattress is comfortable for your sleep style? We explore the benefits and disadvantages.
![Bed bugs scrambling about on a mattress](https://cdn.mos.cms.futurecdn.net/4rcxfqXPfFRi8jtKmqb2Cg-320-80.jpg)
Why do bed bugs come out at night? Plus how to get them out of your mattress
By Frances Daniels published
We explore why bed bugs seem to prefer to come out at night and the easy tricks you can use to get them out of your mattress
![Sleep Number C2 smart bed in bedroom.](https://cdn.mos.cms.futurecdn.net/EWVW9DS4etwADLegnmT2AJ-320-80.jpg)
Are Sleep Number beds worth it? I’m a mattress tester and here’s my take
By Ruth Jones published
Sleep Number beds feature adjustable firmness and integrated sleep tracking, but are they worth the premium pricing?
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