The Ringer reports on why “mattresses are the new iPhones.”

This morning, like most mornings, I looked at my phone. The screen read, “26.” “Shit,” I thought. Only a 26? Then I realized my mistake: I’d forgotten to switch it on until 2:45 a.m.

“It” is Beddit, a device that sits underneath my fitted sheet and tracks my heart rate and movement while I sleep. Each morning, I’m awarded a score?—?a 100 is perfect, a zero means you did not sleep at all. When I’d gone to bed at 11 p.m., I’d forgotten to switch on Beddit, which sends information to an app via Bluetooth. At 2:45 a.m., I’d woken up, like I usually do, and turned it on?—?which accounts for this morning’s terrible score.