http://www.news4jax.com/slideshow/news/18873591/detail.html
Picture four: Mattresses on the floor.
Picture seven: Haleigh's empty bedframe in her room. It is completely see-through so there is no hiding underneath it. The caption says AS stated Haleigh never slept in her room so I don't believe there used to be a mattress that LE took since they didn't take the one in the master bedroom.
I don't understand why they kept Haleigh's bed in her room if she always slept in the master bedroom. It takes up a lot of space in the middle of the room for nothing. You can't even use it for comfortable sitting with no mattress. Why not move the bedframe to the master bedroom and have more playing space in her playroom?
It would make a lot of sense if Haleigh really used to sleep in her bed in her own room. The hiding under the bed comments would be easier to understand and the furniture placement would make more sense overall, and it would make it easier for Misty not to notice Haleigh was gone when she woke up until after having wandered in a lot of rooms (if that's really what happened). It would explain Misty and Ronald's changing stories about the sleeping arrangements in the master bedroom. It might mean that something happened to Haleigh in her own bedroom and they needed to divert attention away from it.
But it would mean they all lied *gasp*