Top or bottom?

We finally moved the kids out of their cribs. They were still sleeping in modified cribs, Sawyer's converted to a Daybed. Arden's was just a crib with the front panel removed. Scott scored this bunk bed from one of the properties he manages. It isn't in perfect condition, but the kids are just thrilled. They think it's a rocket ship. One thing's for sure — nobody's sleeping tonight.