Does it? Humans sleep on a wide variety of surfaces, from bamboo mats to memory foam, and if sleep quality is taken to be “does not wake up” then observably mat

Does it? Humans sleep on a wide variety of surfaces, from bamboo mats to memory foam, and if sleep quality is taken to be “does not wake up” then observably mattresses don’t really affect the quality of sleep in general. Are you sure ”mattresses are important for your health” isn’t largely a product of advertising? That would be ironic.