I've waited several weeks to get a good feel about these glasses, and write a full review. I have had insomnia for about 40 years continuously. I control it, but not perfectly, through sleep hygiene. My insomnia is characterized by being unable to stay asleep; I fall asleep (usually) easily, but will awaken anywhere from 2-4 hours later, and then remain awake until dawn. I get up, read, etc., but I still don't get good sleep. I took a Cognitive Behavioral Therapy course on line called Shuti a few years ago that I found gave me some excellent tools to help with my problem, but it was still not 100%. I averaged taking sleeping meds once/week, even if I'm doing everything right. So I am always on the lookout for some new technology, suggestion, program, etc. I saw these on line, and waited until the folding ones were available - I thought I'd definitely break them if I got something I couldn't put away easily. So I have been using these for about six weeks now, and I literally don't leave home without them. Although I still need to take an occasional sleeping pill, the sleep I do enjoy now is deeper, more restful, and more consistent than I have had in many years. When I don't get a full night's sleep, I have usually screwed up my hygiene, been on the computer too late at night, or something is worrying me. So, it is more than just helping to fall asleep - because that's not my issue. It is obtaining deep and restful sleep 9 nights out of 10.I bought a little glasses holder for them on my night stand so I always put them away. They charge quickly and easily, and hold the charge for more than on week. Two Cons: I wish there were some sort of a headband so I could move around, make the bed, ect. while I wear them in the morning. They don't fall off, but you really can't be moving around much, especially you can't be looking down, or they'll slide off your face. Secondly, I wish there were a travel case for them. I travel some, and I pack them in the box they came in to guard against breakage, but it is fairly bulky; a hard shell case would be easier to use.P.S. (added 8/3/19) Still really happy with this. Last night the party across the street got pretty noisy an woke me up. I went back to sleep! Amazing!!! I wanted to say that until more functionality is added, the App is nearly useless. I could use it to see if the unit needs charging, but I find it easier to just plug it in on Sunday night.PPS added 12/14/2019. Experience just gets better and better!Addition 1/11/2020 - LISTEN UP! After 40 years of insomnia, I have begun to sleep through the night. Not every night, but regularly. If I wake up, I fall back asleep 95% of the time. This is an amazing product! The next time I see my doctor, insomnia won't be on the problem list. My advice: adhere rigorously to a schedule of use, and clean up your sleep hygiene habits. Kicking insomnia makes every morning fantastic!