Getting Started ← Knowledge Base Pillow on the iPhone Basics Does Pillow work in background? Why do I have to keep my iPhone or iPad plugged during the night? Does Pillow work if my device is on silent/Do Not Disturb mode? Why does Pillow need access to the microphone? The intro video won't play Does the app work when the screen locks? Can i turn my phone off while using Pillow? Will Pillow work under my pillow? Why does pillow need access to my motion data? What is sleep aid?