From a technical perspective, Sleep Number Corporation (SNBR) is looking like an interesting pick, as it just reached a key level of support. SNBR's 50-day simple moving average crossed above its 200-day simple moving average, which is known as a "golden cross" in the trading world.Considered an important signifier for a bullish breakout, a golden cross is a technical chart pattern that's formed when a stock's short-term moving average breaks above a longer-term moving average; the most common crossover inv ...