Suppose In a recent study on sleep patterns, researchers found that individuals who consistently get 7-8 hours of sleep per night tend to have better cognitive function and overall health compared to those who get less than 6 hours of sleep. However, they also noted that oversleeping (more than 9 hours per night) can have negative effects on health and productivity.
Can we infer that "Getting more than 9 hours of sleep per night is always beneficial"? Yes, no, or maybe?