I would like to know what is the easiest way to silence notifications (mainly from email and WhatsApp), but not phone calls. My wife's phone has been disturbing me with notifications (primarily from WhatsApp) late at night when I'm trying to sleep. I've showed her how to turn off notifications in WhatsApp, but it is not a simple process to go into the settings and make the change at night and then change it back in the morning. She complains that it is too complicated. The volume button does this, but it seem to turn off all sounds including the ringer. I would like an easy way to just turn off notifications and then back on again. Even a way to set a schedule when the notifications turn off and on would be nice. The ringer must always be turned on. I know how to do this with one tap on my phone which is not an iPhone. I don't know an easy way to do it on an iPhone.