While some city dwellers have developed the ability to tune out loud noises, not everyone can ignore disruptive sounds come bedtime. Using optimized frequencies and decibel levels, Nightingale can do what white noise machines and fans fail to accomplish, by interfering with the brain's ability to comprehend noise when you're ready for bed. These unobtrusive units plug directly into wall outlets, while providing a pass-through for plugging in other electronics. You can control Nightingale with its free app (iOS and Android), and also choose if you want to add LED lighting effects in a variety of colors to help set the mood for a peaceful night's rest. The company has provided use with two home sleep systems for a pair of lucky winners this week. All you need to do is head to the Rafflecopter widget for up to three chances at winning one of these Nightingale home sleep systems. Good luck!

Winners: Congratulations to Austin R. of Honolulu, HI and Will S. of San Jose, CA!