Lavender Eye Pillows are hand-made with 100% cotton fabric double-stitched with cotton thread. The pillows are available in assorted fabric patterns and colors (see Additional Information). The pillows contain a 50% mixture of dried hybrid lavender buds and Jasmine rice. The aromatherapy eye pillows may reduce stress and promote relaxation. Many customers have reported relief from headaches. For cooling relief, seal the lavender insert in a plastic bag and freeze overnight before use. For warming relief, place the lavender insert on a clean, dry plate in the microwave. Start the microwave with 30 seconds on full power and increase by 15 second steps to get the desired temperature. DO NOT OVERHEAT. Do not exceed 1 to 1.5 minutes in duration. The aroma of the lavender will naturally decrease with repeated heating and cooling. The cotton cover for the pillow without nose cutout can be washed. DO NOT WASH THE INSERT CONTAINING LAVENDER BUDS. The pillow with nose cutout does not have a cotton cover. DO NOT WASH THE EYE PILLOW WITH NOSE CUTOUT.