Instead of a headboard, place bookshelves to frame the bed. Add lights for late night reading. This would be great for a guest bedroom. Leave the shelves at the end of the bed empty for the guests to unpack their clothes. or kids room
Children's Bed - Looks Like A Little House Headboard . instructions seem to be in Dutch, you can try translating it into English but you get the idea for a cute bed that you could copy from the picture and the dimensions of a twin size bed.