If you have trouble falling asleep, here is something that you may not know. The National Sleep Foundation suggests that having warm feet when going to bed sends a signal to your brain that it is bedtime. Sleep research indicates a correlation between falling asleep quickly and increased blood dilation in our extremities. Wearing socks to bed warms your skin and dilates your blood vessels. Having a restful night is essential for a good day so go to bed wearing a clean pair of socks. Today there are socks with built in technology that will not only keep your feet warm but may provide relief from restless leg syndrome.