Ok thanks ^^. Forgot to ask... is there any problem about day light? Or should I find a way to make my room entirely "dark" during the morning (or the time I try WILD)? Also, I live in a city and a lot of cars keep passing during the night, people screaming, people talking in the apartments next to mine (yeah, students don't sleep...), people playing music during the "morning" (4 am), so there's a lot of noise. Any advice?