Ever try to snooze with headphones strapped on? It's not a pleasant experience. For those in need of a good lullaby, there's SleepPhones. Dubbed "pajamas for your ears," this set claims to be the world's most comfortable headphones for sleeping. Maybe that's because they actually embed the headphones into a soft little strap. The speakers are also removable so the nightmare-prone can give the fleece headband a good washing once in a while.