Pro-form Niteguard Laminates 0.150", Clear, 12/Box This laminated or layered soft material was made specifically for nighttime bruxers. The layering gives the thermoplastic a more abrasion-resistant characteristic that will withstand grinding better than traditional soft sheet material.
2 layers of EVA - one dense and one softer
5"x5" laminated sheets
30% denser mouthguards