If you have trouble falling asleep, here is something that you may not know. The National Sleep Foundation suggests 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. Something else that may keep you from sleep is Restless Legs Syndrome (RLS), a condition that causes an uncontrollable urge to move your legs. Today’s socks with built in HPT technology will not only keep your feet nice and toasty but may also provide relief from restless leg syndrome.