Stop Snoring Remedies

I’ve lived with my roommate for several months now, and her snoring is becoming unbearable. She is a friend but we are still getting to know each other, and I’m afraid to bring it up to her. When I fall asleep before her, it isn’t usually a problem because I can sleep through it, but anymore she’s been going to bed before me and I can’t manage to fall asleep anymore. We live in a house with several other girls, so I can just move to a couch if necessary, but I think it’s unfair for me to always have to move. How can I gently approach her with the topic and what are some noninvasive remedies? Thanks!