The Worlds Most Sustainable Eye Mask? Even super sustainable brands still used recycled polyester in their eye masks for the padding, Smalls Sleepy Eye Mask contains 100% traceable, EMAS certified, fluffy wool padding light as a feather, regulating your sleep temperature and keeping those eyes away from any nasty chemicals. Part of our ZERO WASTE approach means we work with our pattern cutters to maximise the use of the fabric roll and any spare pieces are turned into gorgeous things like the softest scrunchies and sustainable eye masks! Size Guide Returns Policy