I've been tracking my sleep with a wearable for two months, and the data shows I get about 6.5 hours on average, yet I feel fine most days. Sleep tracking apps keep pushing 8 hours as the gold standard, but is that number really universal? I've read some studies suggesting genetic variations can make some people thrive on less, but I'm not sure how much to trust those findings. Does insisting everyone needs a rigid 8 hours actually cause more anxiety and harm than it prevents?