If you often feel tired or cranky, or have trouble concentrating, it could be because you aren’t getting enough good, sound sleep. Some people function well on as little as six hours of sleep at night, while others require nine or 10 hours. But most people need about eight hours of sleep to stay healthy and be at their best, according to the National Sleep Foundation. Autumn Grimm, a family nurse practitioner at Sandhills Neurologists, joins the FirstHealth and Wellness Podcast to discuss the most frequent sleep issues and what you can do about them.