Has anyone ever heard of, or experienced, seasonal insomnia? Ever since the weather changed in april, I have had an even more difficult time sleeping than I normally do. My husband and I moved into an apartment in july 2000. In april 2001, I began experiencing insomnia. I went through the whole sleep study process and was told there is nothing physically wrong with me. I was getting a little better and then in april of every year since, it gets really bad again. I'm beginning to think it's something in the apartment. But how do I prove it? Or am I just totally nuts?