Popsugar Culture Tech Tips How to Use iPhone's Hidden Sleep Timer I Didn't Know How Much I Needed This Hidden iPhone Sleep Timer Until It Became a Reality March 7, 2019 by Karenna Meredith First Published: March 5, 2019 View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Locate the Clock App on Your Home Screen Access the Clock app through the first page on your home screen. Previous Next Start Slideshow