With CR-39 Lenses, These Glasses Provide Superior Visual Clarity & Protection Against Harmful Blue Light
Protect your eyes in style with these Swanwick® Crystal Night Swannies. These are blue light blocking glasses, scientifically proven to help you relieve eye strain and get better sleep. This leads to well-rested mornings and more productive days. With at least 1 to 2 hours of continuous use before bedtime, these Night Swannies can optimize your sleep. With CR-39 lenses, these prescription-grade glasses provide superior visual clarity and protection against blue light. Night Swannies can also be used during the day to protect your eyes from excessive day blue light exposure. These glasses come with cellulose acetate frames, making them adjustable, strong, and lightweight.
CR-39 lenses & anti-reflective coating for superior visual clarity and protection against blue light
Optimizes sleep w/ at least 1 to 2 hours of continuous use before bedtime
Do not remove until all lights & devices are turned off
Take regular breaks & allow some natural light exposure
An independent study by SleepScore Labs showed that Night Swannies resulted in significantly improved sleep, including an average of 33% increased sleepiness at bedtime, 11 minutes less time to fall asleep, and 24 minutes reducted time awake during the night.