This started happening since I upgraded to the latest IOS version. When the phone is in sleep mode, the screen will come on without me touching the phone. It will stay on for a few seconds, and then it will go black with the "slide to turn off phone" slider at the top and a white circle with an "X" in the center, and at the bottom of that circle the word "cancel." This will happen a couple of more times, and then when the phone goes into sleep mode again, it stays in sleep mode until I awaken the phone. Then, this issue comes back Anyone experiencing this? I did both a reset and a hard reset, and neither fixes the issue.