T.O.
My daughter is 6 and sleeps on the floor of her room almost every night right in front of the door, we leave the hall light on so there is plenty of light. I even bought a new mattress thinking she would like it better, she just likes the floor and the dr said as long as she is sleeping it is not a concern and she will out grow the phase. She has been doing this for about 6mo now. I wouldn't be concerned he will out grow it.