This study seeks to investigate the impact of BB lenses on melatonin and sleep in insomnia patients using a randomized, placebo-controlled crossover study, with the aim of developing a novel non-pharmacological approach for the treatment of insomnia. 15 individuals with insomnia will wear either BB or placebo (clear) lenses for 2 hours preceding bedtime while at home, for 1 week in a cross-over design. Sleep quality will be documented while at home, at also melatonin secretion while in the laboratory. It is predicted that compared to placebo, wearing BB lenses for 2 hours preceding bedtime will attenuate bright light associated melatonin suppression and improve sleep.