TrueDark Twilights Classic Blue Light Blocking Glasses - Reduce Eye Strain and UV Glare for Better Sleep - Men & Women - Computer Screen, Gaming, TV, Phone - by Dave Asprey

Expensive but they’re really the best. Super comfortable, blocks all the green and blues, you will start to feel drowsy before bed even if using phone or laptop.

Los llevo usando unas semanas y ayudan bastante antes de dormir, son muy relajantes para la vista aunque si toma tiempo acostumbrarse a ellos. La calidad no es muy buena, son de plástico pero no he tenido ningún problema con ellos.

Amazing. These glases are so good, and the design is clean and robust as well. 10/10. will recommend this. They came in 1week before as well.

If you have used cheap blocking glasses in the past - brace yourself. These are seriously next level. Yes, they are quite spendy but wow. You know those blue indicator lights on things like washing machines etc? Yeah - I put these on and those completely disappear. I will say that watching something online with these on is a bit 'different' because of the spectrum blocking. Oh well. These are also comfortable to wear, and the sides block out stray light well. Highly recommend. TrueDark's are what other blocking glasses wish they were.

Overall: Extreme cheap product quality better priced at $20. A different Amazon vendor sells the same frame with the same lenses for 50% less. Search for safetey blue sleep savior. RETURNED IMMEDIATELY AFTER OPENING. The frames: These are easily the lowest quality glasses frames I have ever seen or owned. It is an extremely light weight and brittle plastic. If you fell asleep on these, dropped them, or accidentally rolled over on them, they would definitely break. Feels like foamed ABS plastic - think 1980s car interior. The Lens: The lens is a very deep red which likely blocks the advertised spectrums. The lens is relatively thin and doesn't distort vision. It does reduce light transmission on all spectrums pretty strongly, so note that using in very low light or the dark is likely not safe. The Fit The frame is made for wider heads than mine. While brand name sunglasses fit with no issue, these are wide enough that the foam didn't seal against my face at all. While the cheap plastic is very light, the plus is you likely forget you're wearing them (other than the deep red hue that everything takes on).