Hi, I am going thru a major depression and one of the results is that I don't sleep well. I sleep in a bedroom with blinds which allow in a significant amount of outside light (parking area lights for our townhouse complex) during the night. I use a eye mask which I find comfortable, well-fitting, and quite effective at blocking light. However, I've read that our bodies have light receptors in the gut and lack of total darkness can disrupt all sorts of processes in the body. So, is an eye mask sufficient or should the bedroom also be pitch black?