1. Women in menstruation are not suitable for sleeping in the nude, because they should not only consider hygiene but also pay attention to warmth during menstruation. Sleeping in the nude is not conducive to maintaining hygiene and warmth, and there is a risk of catching a cold.
2. People with poor gastrointestinal function and those suffering from skin diseases are not suitable for sleeping naked. Sleeping naked with a poor gastrointestinal condition is easy to cause abdominal cold, which further aggravates the symptoms of gastrointestinal discomfort.
3. The elderly are deteriorating in all aspects of function and have relatively poor physical fitness. Sleeping naked will have the risk of catching a cold, so they need to wear clothes to sleep and cover themselves with thick quilts to keep out the cold.