I work at Google, as far as I know no one uses these. I never have, although I considered using one when I didn't have any accommodation for the night (I ended

I work at Google, as far as I know no one uses these. I never have, although I considered using one when I didn't have any accommodation for the night (I ended up staying with a friend). That said, people do not work long hours. Only very few people consistently working more than 45 hours a week. Napping is not going to reduce your workload, it's just a lifestyle choice that most people choose not to make. Similarly, people take breaks either to socialize with other employees, or because they can't handle working solidly for 3-4 hours.