Hi there, I guess you could call me Queen of Melanoma! Do you have fair skin, light color or red hair, have you ever had any serious sunburn throughout childhood? Do you ever sun bath or get in a tanning bed? If you answered YES to any of these, you are more prone to get any form of skin cancer than others. I have had so many places removed and actually had malignant melanoma and lymph nodes removed 8 years ago. As for your room, can you not get a room darkening shade for your windows? You can buy these fairly cheap and it would keep out the harmful rays whenever you wanted to eliminate the light. Or, you could alwasy tack up a dark colored sheet/blanket or even hang different heavy type lined curtains over your windows. Hope I've helped!