Our daughter's got a bunk bed, and she sleeps on the lower bunk. shes 5. I gather kids under 7 aren't supposed to sleep on a top bunk, but not sure if thats because they're deemed more likely to fall out of bed before they're 7, or whether it's because if they did they'd be less hurt if they were 7 or over!! Our daughter's never fallen out of bed, the top bunk has a low rail around it anyway, she'd love to sleep on the top. i'm about to redocate her room, and it'd be nice to promote her to top bunk at the same time. what do you think - should i wait another 2 yrs or just get on with it??!!