How can you disagree with a good night's rest? But it's true, you get a better sleep when you're crashing in your own bed by yourself. You won't get kicked in the middle of the night; there are no pushes or cover grabs to deal with. According to a survey conducted by the National Sleep Foundation, a bed mate can cause you to lose an average of 49 minutes of sleep per night. And we all know that every extra minute counts when you're hitting "snooze" in the a.m.