With all the emerging technology out there to get us to sleep better (or for some of us, get any sleep at all), could it be that a pair of $8 orange-tinted glasses has been the secret sleep weapon this whole time? The concept behind the glasses is simple: Orange lenses counteract the blue part of the light spectrum, which is what we’re often exposed to pre-bedtime thanks to various screens (tablets, computers, TVs) surrounding us. And because of that blue light, the body’s production of melatonin, which helps the body fall asleep, slows down. According to a Swiss study, teenage boys who experimented with wearing orange glasses when they were looking at their screens for a few hours each night said they felt “significantly more sleepy” than when they weren’t wearing the glasses. The same held true for a study with older adults between the ages of 18 and 68, though experts say that blue light may have less of an effect on people as they age. Either way, for those wrestling with sleep deprivation, trying on a pair of $8 glasses to get a better night’s rest sounds like no-brainer.