Sleep problems are becoming more common for many people. Napping during the day is one of the best ways to relieve the accumulation of drowsiness. Some companies have begun to pay attention to employees' health and encourage them to take a nap at noon. However, people have different opinions regarding naps. Many people refuse to take a nap because of the uncomfortable posture and the feeling after waking up. Also, facilities for people to lie down and sleep have not been popularized. The most common napping position is sitting. This study aims to let people nap better in a sitting posture in an office environment to avoid problems like shoulder and neck pain, nausea, and poor blood circulation during napping.