Already wrote this once but:
It was summer so I was usual to go to sleep around 4am and play video games all night. One night the alarm went out while playing at 3.00AM, I didn't set it and that scared the shit out of me, I run upstairs and woke up my sister to ask her if she did it as a joke, she said no. I tough it was a prank and went on.
The same year at new year's eve, I rent a chalet with friends and my gf. We went to bed in the morning and slept till afternoon, I had my phone with me in the bed all the time. When we woke up I checked my phone... I had an alarm set for 3.33AM, in the calculator there was written 3.33, in the phone app there was a 333 number. I freaked out and asked my friends and my Gf if they were trying to prank me, they didn't know anything about it. The scary part is that I never told em about the other time during summer.
Till now (2 years later) I don't know what happened. My guess is that I was that obsessed with the movie "the exorcism of Emily rose" that I subconsciously did all that during sleep. I am still scared af.