Ah, the curse of the groggy morning. You may have followed all the rules: no caffeine before bed, an early bedtime, and all the rest. But your best efforts are oftentimes for naught, foiled by the mysterious ways of sleep cycles. There may be an answer: WakeMate , a Y Combinator -funded startup that's launching today, is looking to help you catch that ever-elusive good night's sleep (and maybe even the perfect nap, too). WakeMate is one of the few startups we've see that actually involves its own physical product (another that comes to mind is FitBit ). To use the service, you first order the WakeMate wristband from the website, which costs $50. Then, you download an application for your Bluetooth-enabled smartphone (WakeMate is launching with support for iPhone, BlackBerry, Android, Windows Mobile, and a standard Java app for non-smart phones; support for Palm's WebOS is on the way).