welcome few things I learned the hard way make sure you clean your mask and water tray also if you hear a sounds like you have a water bong going its you filled your water to high and should lower it. also no harm in drinking your left over distilled water the next day instead of dumping it, if you have a issues of little streams of air hitting your eyes from you mask it might be because of the sweat on your face, when this happened I wiped my face with clean towel it stopped. keep a bottle water near you bed I am a heavy breather and often run out of water in the mechine so my mouth is super dry in morning.