If you don't get a good night's sleep, everything in your life will be seriously affected, even fatal! In order to have a good sleep, in addition to a quiet environment, some auxiliary means are also necessary, such as sleep aid applications such as BetterSleep, which can make it easier and faster for you to fall asleep and sleep more soundly. If you are still troubled by insomnia, light sleep or headache at night, then this tool may become one of your must-have apps.