Noizio - Feeling that the noise of the big city is too much for you to bear?
Casper Glow - A magical light for better sleep
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Generative.fm - Endlessly unique ambient music
Defonic - Create a unique sound environment at home or in the office
Sleep as Android - Common alarm clocks ignore your sleep cycles, they wake you on schedule no matter your are currently in your deep sleep. Waking up from deep sleep is unpleasant, it makes you tired and it may negatively affect your productivity during the whole day.