https://helloupdo.com/blogs/hello-updo/what-silk-does-for-your-hair-while-you-sleep-and-why-it-matters 2026-05-08T17:51:54-04:00 weekly https://cdn.shopify.com/s/files/1/0342/3597/3768/articles/Untitled_design_3_3e826300-18c6-4348-961e-11a56e389e64.png?v=1778277114 What Silk Does for Your Hair While You Sleep, and Why it Matters