When students are not rushed to get work done it relieves stress which allows them to rest better. The students often have only a little bit of time that they can rest, but they are unable to rest due to their high stress.
When students are well rested it allows them to concentrate better. It is hard to focus on school work when you are not well rested.
Working ahead on assignments is a valuable tool that every college student needs. This allows time for needed rest which is an important key to success in college.