Why did siri go off randomly?

I was sleeping, and my iPhone 5c went off.

You might have said "Hey Siri" in your sleep (if your iPhone was plugged in). Its a new feature. I found out when I started talking about siri, and then she responded from like 20 feet away. I was blown away, its pretty cool. Now I can talk to siri when I'm driving.

The same thing happened to me in class when someone said Siri and i think it has to do with a new feature or update.

I was in the middle of sleeping and Siri came out of noware on my iPad wich is not. A good thing because I'm nine it is 10:55 at night

I'm not supposed to be up thanks a lot siri

  • Why is Siri popping up randomly? Ok so at 7:00, I was playing music then all of a sudden Siri pops up. There was nothing on the home button and my chin didn't touch the controls on my ear pods. I'm running 6.1.4 on my iPhone 5. Do I have to call apple or is there something I could do? And I already restarted my phone.
  • Why is IPhone Siri funnier than iPad Siri? I have an iPad mini. Siri is so boring on mine. She just says, "I can't answer that." Or "is that so?". On my friends iPhone, she replies really funny. Also on the Internet I see funny convos with Siri all from iPhone and not on iPad mini. Why is it that siri is funnier on iPhone? They are both part of apple!
  • Why does my iPhone randomly turn off? I've had an iPhone 3GS for a while but now it'll just randomly shut off and i have no idea why. When i try to turn it on the apple symbol appears and thats it until it just goes black again and won't turn back on until you plug it into the charger. I already tried hard starting it and nothing. It can be at 90% battery and it'll do that can anybody help?
  • Why did the space on my iphone randomly free up? So not long ago, i had like 6.3 gb used up (i have an 8 gb, and it sucks balls, cuz i can't have *** on my phone) and now, randomly, without deleting anything, it went down to 5.7? I did nothing to it, it just randomly did this. Is theree any reason this could have happened? I just wanna know cuz i'm afraid my phone might be deleting things by itself but i didn't notice anything gone… So has this happened to anyone else?