NAPVIEW is a user-friendly software for automatic real-time sleep stage classification in the sleep lab. It provides a real-time interface to deep learning machine learning algorithm output. It connects to live EEG data, runs automated sleep stage classification using powerful machine learning tools, and displays stage probabilities and signal features. NAPVIEW runs independently of existing lab setups and is intended to make the lives of researchers easier during live monitoring at night. At present NAPVIEW directly supports BrainVision and OpenBCI EEG hardware, but any EEG system that allows real-time signal streaming can be connected through a labstreaminglayer (LSL) connector.