As someone who enjoys living his life to the fullest, I think health is a major component of a good life. And what's more important than sleep?
I made this webapp to help me set a waking time alarm based on the number of REM cycles you are supposed to get every night. There are many apps and website already available to calculate this, but none are mobile-ready, don't need to be installed to function, have no ads, and are completely available offline once added to your phone favourites. I hope you enjoy.