I know I've read on these boards many times that Disney "recommends" the trundle for ages 3-9. Is that enforced like the under 3 for the 5th person at the All Stars, or as long as my 10 year old fits can we still book it? I know when we stayed there in 2000, they simply told us it was recommended for folks under 5 feet, but no age restriction. Is this new? I slept on it then actually (I'm 5'8") and was fine, and since my son is about 52 inches, I'm sure he'd be okay! Anyone know?