Why does my iPhone 5s freeze every morning?

The last few days I have turned on 5 or 6 alarms in the morning because I have trouble waking up since school started. Every time they go off, my screen freezes and jitters every time I try and turn them off or unlock my phone. If I restart it, it's fine but even that is hard to do since I can't slide the power off button due to the freezing. It's less than a year old. Does anyone know why this is happening and/or how to fix it?

Seems like the issue due to jailbreak. I suggest restore your device in iTunes after back up. Do it only if it really bothers you

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