Most adults need 7-9 hours of sleep every night, so take a look at your wake-up time, and do the math.

FORBES: Tips For Going To Bed On Time

It was a wake-up call, big time.

CNN: Rihanna speaks: 'Love is so blind'

Setting the time and your wake-up alarm has never been easier thanks to Halo 3's auto-sync time and alarms feature.

ENGADGET: Gear4 spreads Lightning connector love with $129 alarm clock, $79 portable speaker dock

Initial reports suggested the woman told police she asked for a wake-up call at 04:00 local time and was offered a massage by the hotel owner when he knocked on her door.

BBC: The Taj Mahal, Agra, India

So if you wake up on Election Day and you're sick, the car broke down, there's no babysitter, somebody is throwing up, wake up with an ear infection -- this is that time of year.

WHITEHOUSE: The White House

The king consulted parliament over the cabinet's make-up for the first time, after constitutional changes introduced in the wake of the Arab Spring.

BBC: Jordan's King Abdullah swears in new government