Don't feel down if you haven't found the right one because there are several health benefits of being single. For one, singles socialize more. Bella DePaulo, social psychologist Singles also tend to be slimmer. A 2015 Journal of Family published findings that people living with partners had a higher BMI than those who were ready to mingle. Worried about a good night's sleep? People with lower BMI's sleep better, and a survey by Amerisleep found that single people get the most sleep at an average of 7.1 hours a night. So, the next time you're feeling sorry about being single remember you may live longer because of it.