Abstract: There is a growing concern among people regarding sleep, yet the sleep index of Chinese residents falls short of the standard. Traditional air conditioning systems have limitations in optimizing the sleep environment, highlighting the need to explore more effective thermal control strategies to enhance sleep quality. The current state of research on sleep thermal comfort and intelligent sleep systems is analyzed, considering factors such as air conditioning usage behavior, temperature, humidity, airflow, and regional variations. The results indicate that to create an ideal sleep environment, it is imperative to adjust indoor temperature and humidity according to varying outdoor temperatures and sleep cycles, while incorporating airflow organization control. Additionally, technologies like accelerometers, radar, and the Internet of Things can be leveraged for sleep monitoring and intelligent environmental regulation, ultimately enhancing sleep quality. This offers valuable insights for the design of sleep functions and scenarios in air conditioning systems.

Key words: Thermal environment, Sleep, AI, Air conditioner