Just a little heart attack

On Friday night Colin went to put Lily to bed and she was none too thrilled so he said she could lay down in our bed with him.  I was in the bonus room which is right off of our bedroom and figured they'd be in there for about 20 minutes before either Lily fell asleep and Colin got back up or Colin got tired of Lily's tossing and turning and put her in her own room.  I heard nothing.  I went to bed almost two hours later and when I walked into the room Colin rolled over and sleepily asked me if I had put Lily in her room.  I paused and said no, why would I.  Apparently he heard her get up from the bed and figured she had come to find me.  She does this quite often but I wasn't down stairs like I normally am so I figured maybe she went down there and layed down on the couch when I wasn't there.  I went down stairs and nothing, no Lily.  I thought maybe she went to her own room when she saw I wasn't down stairs, nope, her room was empty.  At this point I was starting to freak out especially since she knows how to unlock the dead bolt on the front door.  I went back into our bedroom and turned on the bathroom light and told Colin he needed to get up and start looking.  That is when I looked down at the floor at the foot of the bed and there she was.  Sound asleep sprawled out on the floor.  It looked like she had started to sneak out of the room and made it about half way, and I am guessing Colin must have rolled over or made some sort of sound that made her freeze and she just fell asleep where she was.