Okay. So I bought a brand new bed and new sheets a little less then a month ago. I just moved in with my boyfriend too. I will be getting my period in two days, and I want to know how to make sure I don't bleed on the bed. I have a mat I lay down that I have been using, and I wear a sanitary napkin. I want to make sure that I won't ruin the new mattress. Of course my boyfriend wanted white sheets too!! 😫