Camp Loft Bed with Stair, Junior Height (I'd want to add a slide on the opposite end from the stairs, a platform on the bottom with a rolling trundle under the platform. so there's room to play AND still an extra bed.)
I want to make this! DIY Furniture Plan from Ana-White.com The top bunk for the Cabin Bunk System. Features full guardrails and slatted mattress support. Works with the rest of the Cabin Collection to create a complete storage and sleeping center.