Check out Janet's great article at Power of Moms!
I knew the importance of rest going into motherhood, but for some reason, my beautiful and demanding son didn’t know that Sunday was my day off. He somehow missed the memo that on this “day of rest” he should sleep through the night, take long naps, not need to nurse on my bleeding breasts, and not cry so that I can be refreshed and a good mother for the remainder of the week
Often as mothers we are either working or feeling guilty that we’re not working (and sometimes both at once!) We need to learn to rest guilt-free because rest isn’t restful if we’re feeling guilty!
Trust me (the objective, unbiased proud, excited mother), you'll want to read it all.