Exactly what it says power nap I suffer from narcolepsy which is the sleeping disorder an this app actually helps me sleep less so thank you very much.
Power nap It's a nice app
First one that has worked
Language issue At the start I selected the "Englisch" (English) then it proceeded to give me non-English instructions and freeze up ... uninstalled as I couldn't use it.
Sleep Calculator - Free app that helps you get most out of your sleep pattern.