Sleeping is not a good idea on the job. I charged a surgical unit 7p to 7a for 3 years before taking a prn and travling job and I find it difficult to believe that people sleep on units. I gave my people breaks whenever they wanted. I made PAPER lunch assignments and breaks, (the regular 30 min and 15 min) but I was VERY lax and allowed 1 to 2 hours, not all at once of course, for breaks and lunch IF there was enought staff and all the work was done. Sleeping was not tolerated. I did not believe then nor do i now that a person who is sleeping on the job can perform there job well. I have asked people who were falling out from lack of sleep to go home...WITH NO MALACE.....I lied to my boss and told them anything they wanted to hear (sick, flu ect) to cover for them....But I have also warned people who i caught sleeping to not let it happen again. And I have fired people who were warned and caught again... I do know in most other professions that sleeping on the job is not tolerated. There are a few exceptions but for the most part it is simply not done....