I used kojimed ultra during night,but since I work in night shift,I sleep from 2am to 10 am or maybe 3am to 11 am or worst 4:00 am to 12noon like that,I apply kojimed ultra before going to bed and I sleep next to a window which has mesh,and strong window glass,and I cover it with a bedsheet not any drapes,but some indirect sunlight come through it but not too much,will it affect my skin that time which can cause tanning? But after that when I wake up I use sunscreen anyway and go out