As we practice taking Sabbath we will see that it is about the attitude we take to having time with God in our day and in our week.  While many may be able to use Sunday as their day of Sabbath, others may take another day due to work and life situations.  For some fuller understandings of Sabbath as a practice we have resources at the faith practices site: Practice of Sabbath.  For individual practices that can make our Sabbath rest more meaningful the faith practices site offers this: Personal Sabbath Practices.