history: I was in a back room and heard a noise everyone else was in bed so I thought maybe someone was in the house.  I was in a back room in our house and everyone else was asleep. I heard a weird crinkling noise and was worried that someone had come in the house.  Oh my goodness_comma_ did you go to check what the noise was?
current: I did, it turned out to be my cat playing with a play mat the kids left out. 
next: I'm glad it wasn't anything serious! It's scary how quick our mind goes to the worst possible scenarios.