When it comes to sleep, seven is the new eight.

We’ve been told forever that we need eight hours of sleep each night. 

But new research says that number is off a bit. More than one million adult sleepers participated in a six year study with University of California San Diego that found sweet spot for sleep – and seven is the new eight. If you really want the premium scientific sleep, set your alarm for 7.1 hours after you hit the sheets.