Sleeping room monitor (light, temperature & humidity)

Afer having baught the humidity sensor, I was looking for something nice to monitor. I ended up with putting the Arduino with the data logger shield in my sleeping room.

On the first diagram, you can see, that the humidity (the blue line) is constantly increasing until I open the window in the morning. Even the arrival of my daugther (3 years) in the middle of the night, didn't change much.

On the second diagram, you are likely to notice that the humidity is not increasing. This is due to the fact that my daughter, as she slipped into her parents bed, forgot to close the door.

Regarding the last diagram, I leave it's reading up to you ...