Bobbing Mattress

From: 
Story type: Ghost
Location: At Home
Source: Form Submission

I come from a big family and I had to share a bed with two other siblings until I got alittle older.I was seven years old when this scarey thing happened to us.We were all sleeping at night and I woke up and saw the mattress bobbing up and down slowly.I was so scared with fear,I just couldn't move.The mattress now was bobbing up and down even faster then before!Both of my other siblings woke up and saw what was happening and we all got up and ran out of the room.We ran into the hallway and into our parents room.We woke them up and told them about it.Our father went and checked in that room and it wasn't happening anymore.I don't know why it happened!I never did feel comfortable sleeping in that bed,again!