Quote (Casualfridays @ Sep 16 2014 12:13am)
So when you are recovering while sleeping your muscles are repairing and growing etc.. but could how you are positioned in your sleep effect your muscle growth? Im sure if it did it would be minimal but over time it could add up. For example when laying flat on your back or stomach with your arms to your side your chest is stretched which would cause more blood to flow into the muscles than if you were to lay on your side with your chest relaxed right?
Don't over think it
Sleep how its comfortable for you. Would you really be willing to force yourself into a sleep position that might be uncomfortable while under the superstition you might get bigger muscles?