A loft bed is one of the more involved kids' furniture moves because it comes apart into many similar-looking pieces at real height. Number every rail, photograph every joint, and bring a helper, and an intimidating teardown becomes a methodical one.
Pro tip: Lay all disassembled parts out on the floor in their assembled shape before boxing hardware, and take one final overview photo. It is the fastest way to catch a missing piece before you leave.
Watch out: Never disassemble the top bunk section alone; the elevated rails and posts are heavy and awkward, and a partially freed section can tip without a second person bracing it.