Are silk sleep masks worth it over foam or contoured masks?

Silk masks like the BeeVines and Alaska Bear options are prized by verified-purchase reviewers for a soft, breathable, skin-friendly feel and a low price, but flat silk masks generally block less light than molded blackout cups and can shift overnight. Contoured foam masks block light more completely but feel bulkier. Which matters more depends on whether your priority is total darkness or lightweight comfort.