I was sleeping when I heard a low frequency sound.I was scared to move but after working up the courage, I reached for my phone where I messaged my mom. I heard he phone going off, but she wasn't responding. I then decided to use the find my iPhone app where i "pinged" her phone. I accidentally pinged my sisters when I heard shuffling and the phone abruptly going quiet. I pinged it again, but this time no noise was heard, except for the sound of whatever made the shuffling noise. Whatever it was started talking in a strange language that is made up of weird sounds and clicks. There was another one that responded, when my mom suddenly text me back in a unusual manner(short phrases). She said that she was ok, and asked if I wanted to come down. In the morning I asked her if she remembers texting me at late around 3 in the morning. She said that she did not such thing, I showed he the texts and she said, "that wasn't me". We have a camera in our living room where the events took place, but all video feed from around that time had been wiped.