Wink Glasses are a clip-on device that monitors your alertness. How does it do this? By counting how often you blink. Your blink rate will tell it if you are getting tired. If it senses that you are dozing, the glass will turn opaque and supposedly, that will wake you up.

I don’t wear glasses, but if I did and I got tired, I doubt this would wake me up. Maybe the first few times. But I’m sure you get used to it and it wears off.

Many of us do not get the proper amount of sleep. That can be dangerous when you’re behind the wheel of a several ton killing machine. The last thing that you want to do is nod off and wake up in a hospital only to find out that you’ve ushered some other poor souls into the great beyond. Or worse never wake up again.

This little gadget sits on your ear and when your head tilts forward more than 30 degrees, a high pitched alarm will sound in your ear. It’s also great for all night gamers. You wouldn’t want to nod off in the middle of a crucial level. It will cost you $14.99 and could save your life. Probably best to get more sleep, though.