Luna gets a problem on her first sleepover with her best friend Leo.She left her doll at home. Without her doll, she cannot sleep. She asks Leo's panda, but Leo says: NO!A Luna story close to life.Luna is going to stay with her best friend Leo for the first time.When it's bedtime, she can't find her doll to sleep with.“Leo, I want your panda to sleep with me tonight,” she cries.But Leo doesn't give in…