If you've ever gotten the short end of the sheets, you'll probably appreciate the research a University of Minnesota professor is working on. Family social science professor Paul Rosenblatt has studied the sleeping habits of 42 couples in the last year, and he says he's found "a million different things." Some of his findings, guys seem to snore more, or at least the loudest. Women usually don't fall asleep right away. What happens in work shows up in a lot of beds. Parents who send children away for a sleep-over seem to consider that night a "date" night. And partners have a side of the bed they almost always sleep on. Rosenblatt says it's important to understand how daily life affects sleeping habits and vice-versa. After all, he says sleep time is when couples have the most time together.