The humble sleep mask is something we don’t really think about too often. Given away free on flights, worn mostly by people in TV shows who want to pretend to sleep and usually completely impractical for regular people trying to have a nap, they’re just there, But fear not: they’ll soon be smarter. The Luuna is the latest in a series of smart sleep masks that make all sorts of eyebrow raising claims. For example, did you know your brain has a melody? Apparently it does, and the Luuna will use it to help you fall asleep faster. It will also track your sleep and record your mutterings. This could get awkward, quickly.