Light up pallet bed frame. I would use one more row of pallets to make my bed sit higher and paint the entire thing. I love the under lighting! Use in guest bedroom. Hurts like hell when you bang your toes on it.
Murphy bed idea for guest room, but add second "foot" that turns into desk further down the bed. Store work items and craft items in cabinet. Also, embed lights in top "foot," to shine down on desk, just like ones that shine on bed.