I'm a certified sleep science coach who has tested over 50 mattresses. Every industry has its top-of-the-line players, and Sleep Number is one of the bigwigs among mattresses. The Sleep Number ...

All products featured on WIRED are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. Temperature and firmness ...

How does a sleep tracker on your finger compare to one in a bed? I tested Sleep Number and Oura for a month to find out. Plus, expert sleep-tracking tips. Aly Lopez Former Writer I Aly Lopez was a ...