Japan is known to many foreigners as a country with workaholic people who stay at the office until late at night and then rush to the office the next day early in the morning. Government offices are well-disciplined and punctual in Japan. Though the official time starts at 8:30 am at many of the ward offices, even if you go at 8 am, you can get your work done! For this reason, many times I could reach the office in time (by 9 am) after finishing the work at the ward office. Government employees too are addicted to work in Japan, a thing which you may never see in other countries.
People searching for jobs in Japan would necessarily check online about the working culture of Japanese people. Most foreigners change their attitude and life to accept the difference in culture and stay longer at the office. Medical doctors recommend 8 hours of sleep for an average adult. For a healthy adult in the age group of 26 to 64, the National Sleep Foundation experts recommend 7 to 9 hours of sleep every day. Considering that the working people comprise that above age group, the recommended sleeping time is 7 to 9 hours a day. Practically, most of us do not follow these guidelines, including me. I used to sleep around 6 hours a day during weekdays and around 8 hours on weekends.
If we work until late at night and rush to the office in the early morning, definitely there is a question: When do they sleep, and how many hours do they sleep, or possibly where do they sleep? Overwork produces stress and related mental problems. Here, one thing we need to understand is that all Japanese people do not stay at the office for long hours. There is a certain percentage of salarymen who are addicted to overwork or overtime payment.
In an attempt to curb the workaholic addictions, the government and corporate entities have implemented many measures. Overworking is discouraged in many offices now. It seems Toyota started a campaign called “No Zangyo Day,” meaning “No Overtime Day” once a week. Many companies followed suit by selecting their convenient day to discourage employees from staying at the office after normal working hours.
If somebody stays longer at the office, it is quite natural to get fatigued, and if continued for weeks, the body will find its own ways to relax. That includes sleeping at the office during office hours or inside the train/bus while commuting. Then, sleeping at the office during office hours kills the whole purpose of overwork! Sleeping at the office is not rare in many of the Japanese offices, especially the 2 to 3 hours after lunch.
Chances to slip into a catnap are high if we are tired of overwork. And this is what happens in most of the cases. Those who were around and active in the office would empathize with the situation and pretend as if they didn’t see anything abnormal. The immediate superior, known as Joushi (上司), usually does not take such catnaps seriously until it starts affecting the performance of that employee. Catnaps at a Japanese office are not legally allowed, but nobody takes them seriously.
Sleep and catnap are synonyms, but I prefer to use the word "catnap." Catnap is a kind of periodic rest, which in most of the type of office work does not affect the output seriously. It, of course, has many serious moral concerns, such as is it OK to sleep while we claim the benefits of our work, isn’t it a kind of laziness, etc. Taking a catnap while doing office work is less harmful and morally justifiable than taking a sleep while attending an important meeting. The speaker may be explaining important steps to revive the company or system. There too we can see some people go for a crazy catnap.