Do sleep masks help with dry eyes or migraines?

For dry eyes specifically, reviewers in r/Dryeyes generally point to heated or moist-heat masks rather than standard blackout masks — the cordless heated mask in this category is FSA/HSA eligible and gets mixed but generally positive feedback for blepharitis and tired eyes. For migraine or light-sensitivity sleep, contoured blackout masks like the MZOO or MyHalos are the more common recommendation.