Welcome to TechCrunch daily news, a round up of the top tech news of the day. Brought to you by Bose. They look like tiny headphones, but New Bose sleepbuds are uniquely designed for sleep — with soothing sounds that block out noises like traffic, snoring and noisy neighbors. --YC is leaving the Valley --Grab raises a big round from SoftBank --and FitBit announces a stripped-down smartwatch. Here's your Daily Crunch for March 6, 2019. The Silicon Valley exodus continues.