Alarm went off all during the night that I didn’t set. What’s going on?

[junem]

Last night my iPhone 5s went off all during the night that I didn’t set. It went off maybe every hour or hour and a half. I’m not exactly sure. Each time I just wanted to not disturb my husband and get back to sleep. I kept checking my alarms set each time and there was nothing. I don’t have a new app that I think could be responsible.
I am baffled and tired.

 

[Rob Phillips]

Hmmm...If you pull down from the top of your display to open Notification Center do you see any notifications from the app that was causing the alarms? You might also want to temporarily uninstall the app you think is causing the issue to see if it stops.

 

[Just_Me_D]

Is it possible that someone is pranking you. For example, could someone have changed the ringtone on your device and then proceeded to call you hourly throughout the night? In addition, why didn’t you simply turn off your phone?