Noisy Napper is a term used to describe someone who snores loudly while sleeping. SNORER, the six letter crossword solution for Noisy Napper, is an individual who makes loud, rumbling noises while asleep due to the vibration of the soft palate and uvula. Snoring can be caused by a variety of factors, such as allergies, sinus problems, or even sleeping position. It can also be a sign of sleep apnea, a serious medical condition that requires treatment.