(KTLA) – Kai Trump, the 18-year-old granddaughter of President Donald Trump, brought her Secret Service detail and all her YouTube followers along on a run to luxury grocery store Erewhon, sparking ...

This article is a part of CNN Underscored’s Guide to Sleep, a weeklong focus on everything you need to sleep better. We’ll be featuring new products, tips and exclusive deals all week, so check in ...