I got a new phone today, and it's the orange and black Samsung Gravity 2. It's pretty good, but I can't figure out how to put it in sleep mode. The only way it goes into sleep mode (sleep mode is when it's not fully off and turns on when you press any key) is if I wait like 20 seconds without using it so it goes to sleep by itself. I looked in the users manual and all I could find was how to turn it off but if it's turned off I can't recieve calls or texts. And I don't want to wait for it to auto-sleep, because that would waste the battery. On most phones there is a button or key that puts it in sleep mode but I can't seem to find it on this one. 10 points to best answer.