f51f3f5a_order___Re_Timer_Sleep_Glasses__Benefit
[Re-Timer] Superior Green Light [Benefit] 
University studies have shown green light to be the most effective wavelength in moving your sleep rhythm (Lack &Wright, 2001) and superior to red and white in the treatment of winter blues (Oren, Brainard et al. 1991)
Winter blues, Seasonal Affective Disorder | Re-Timer Sleep Glasses
Benefit