Ashley Sleep Essentials 12 Inch Medium Hybrid Queen Mattress

Laying in this bed as I type this. I just found out my mattress contains Para Aramid Fiber. I haven't been able to see any particles floating around or on my sheets. Yet. Getting a seriously thick mattress cover. Any suggestions? I can't afford a new mattress. I don't have any symptoms of exposure to fiberglass. Am I cooked? Trying to not have a panic attack right now. Any advice is appreciated.