Catching Some zzzz's

It's so nice not to have to get up at the crack of dawn while I get to be "Holiday Mary Catherine"! Prevention magazine suggests that if you sleep for a good 7 1/2 hours for 3 consecutive nights, then you'll be able to get through at least 5 full REM sleep cycles each night. This means you'll be able to ascertain the best benefits of sleep, including strengthening your immunity. So snooze on!