this would actually be a really fun idea to bring light into the space. a ladder could go against the wall where the metal desk is now with string lights. it would be nice to see walking into the room from the hallway
Monkey curtain tie back, cotton yarn crochet monkey, amigurumi
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.