References
Latest References
![A woman sleeps peacefully in her bed under a white duvet because her room is set to the optimal temperature for sleeping, while a small stack of books can be seen on her bedside table](https://cdn.mos.cms.futurecdn.net/HPoL773yE85v2NyoCCDzLF-320-80.jpg)
Experts say this is the best temperature for sleeping — here’s why
By Sarah Finley published
Too cold or too hot in bed? This is the optimal temperature for a great night's sleep, according to science.
![Students on laptop](https://cdn.mos.cms.futurecdn.net/Dof53g5kkHjMuemysAC5dn-320-80.jpg)
What is Amazon Prime student and is it worth it?
By Louis Ramirez last updated
Prime Student gives college kids access to free shipping and a variety of other perks and discounts.
![White mattress that comes with a lifetime warranty placed on a beige bedframe](https://cdn.mos.cms.futurecdn.net/FFbTDc2qdYNtgQzoUR3yTK-320-80.jpg)
Is there such a thing as a mattress for life? We explore forever warranties
By Alison Barretta published
Does a lifetime warranty mean your mattress will last forever? Not quite, so here’s what you need to know before buying.
![Two delivery men unload a white mattress from their van as part of a White Glove Delivery service](https://cdn.mos.cms.futurecdn.net/iAwtdppm3cmwKUbBeEHG2o-320-80.jpg)
What is mattress White Glove Delivery and which brands offer it for free?
By Claire Davies published
This is what mattress White Glove Delivery means, plus a list of the top bed brands who offer this service free of charge.
![The Emma Original mattress in a box photographed once unpacked and placed on a light wooden bed frame](https://cdn.mos.cms.futurecdn.net/uyKbfce5eDUQGs8pCDBJSF-320-80.jpg)
What is a mattress in a box? Plus, 8 signs they suit your sleep best
By Claire Davies last updated
Boxed mattresses are popular, but what are they and are they any good? Here's what you need to know…
![A couple casting a Google Chromecast to a TV](https://cdn.mos.cms.futurecdn.net/kFCCZVhDhEpwvZuC7dXSV6-320-80.jpg)
What is Google Chromecast?
By Henry T. Casey last updated
Google Chromecast plugs into your TV and grants easy access to multiple streaming services, from Netflix and YouTube to Google Play.
![An air purifier next to a houseplant and a chair on a hardwood floor](https://cdn.mos.cms.futurecdn.net/ShvGqfEtrvrJFb6gctB4AM-320-80.jpg)
10 things you need to know before buying an air purifier
By Emily Long last updated
How should you choose an air purifier? We've got some helpful tips.
![lord of the rings gollum](https://cdn.mos.cms.futurecdn.net/opqS8JeRSKiGBjVjP996p7-320-80.png)
The Lord of the Rings: Gollum teaser trailer, gameplay and more
By Marshall Honorof last updated
The Lord of the Rings: Gollum pits the titular character against orcs and other fantastical beasts as he escapes Mordor.
Sign up to get the BEST of Tom's Guide direct to your inbox.
Get instant access to breaking news, the hottest reviews, great deals and helpful tips.