[minimalist]

Are there non-plastic nighttime mouthguards out there? In light of all the new awareness about the health hazards of micro and nano plastics (and plasticizers), I'm a bit reluctant about sleeping with a soft plastic block in my mouth every day.

[tacosalsa]

It's not actually made from a single soft plastic, the inner lining is soft, and the outer parts are quite hard. I don't think there's a non-plastic mouthguard in the market.