Nathaniel Kleitman was an American physiologist and sleep researcher who served as Professor Emeritus in Physiology at the University of Chicago. He is recognized as the father of modern sleep research, and is the author of the seminal 1939 book Sleep and Wakefulness.
Square frames in a rich tortoise shell hue with subtle curves and a clear saddle bridge. If you like glasses that wrap, this frame has you in mind.
Fit: Medium - Learn Your Size
There is a noticeable difference in my “winding down” process when wearing these lenses before bed. Your senses are seemingly warmer. I have noticed that I fall asleep easier after a short time of use. I recommend.
I’ve used these for the last 8 months and I can say I have genuinely seen the effects it’s had on me at night. I feel more relaxed and allows me to stay on track with quality sleep even when I’m staring at screens.
Even though I have always dimmed my screens in the evenings, I would still suffer from awful headaches if I’m on any screen prior to bedtime. When I use these glasses I don’t have a tension headache and my body still knows that it’s time to get ready for bed. I would definitely recommend these for anyone wanting to help their body recover their natural circadian rhythm!
I purchased the Clyde Daylight and Sunset combo. I experienced an immediately noticeable difference with my eyes, no more feeling of pulling eye strain and dry eyes after screen time. Noticeable sleep difference to, I drift off faster and sleep deeper at night.
I've worn blue-light blockers for years but finally got a stylish upgrade with Ra. These are so much more effective, too! I put them on as we prepare our house lights for the evening (circa 6:30pm) and have found that I'm winding down for bed so much easier. They're really cute and comfortable, and I can tell they will last a while. I have a fairly tiny head and they fit well (just a little bit of shifting here and there on my nose). Highly recommend and can't wait to by a pair for daytime screen usage!
Finding yourself inside, staring at screens day and night? You need to protect your health from the damaging effects of all that artificial blue light. Ra Optics glasses are scientifically-proven to block 95-100% of artificial blue light, saving you from poor sleep, eyestrain, headaches, and feeling fatigued.
For years I searched for a treatment that would heal - not mask - my underlying health issues. What I uncovered changed everything about the way I thought about light, sleep and my health. Keep reading to learn how Ra Optics’ Blue Light Blocking Glasses have made all the difference.
We started with science then made it stylish. Our glasses have been developed with leaders of photoscience, neuroscience, and optics. They are infused with pigments that have been tested and retested for effectiveness. We personally know they work, but many leaders in health and fitness can attest to that too.
