What Keeps Warren Buffett Up at Night? Hint: It's Not What You Think.

Warren Buffett has expressed concerns about the U.S. budget deficit and unsustainable government spending, which could lead to high inflation. However, when directly asked what keeps him up at night, Buffett revealed that only personal matters like friends' and relatives' illnesses concern him, not portfolio performance. His long-term investment strategy and focus on business fundamentals rather than short-term market movements allow him to sleep well.