We bought this for our 3 year old (although he is the size of a 5 yr old) in hopes that it would excite him enough to want to sleep in his own bed.  Not sure if that was successful, but he does LOVE it!  It's low enough to the ground that I'm not worried about him getting up at night and falling if he has to go use the bathroom.  He loves to make forts under it and its so simple he can do it himself.  Love that it opens his tiny room up enough to have more play room.  We are even going to put some cubbies under it for toy storage. LOVE IT!!!