Wellness experts are pointing to morning sunlight benefits that may rival your first cup of coffee, with research suggesting a few minutes outside can reset your sleep, lift your mood and strengthen your bones. Morning sunlight benefits include better sleep quality, a stronger immune system, vitamin D production, healthier bones and improved mood - and timing matters because light is what sets your body's internal clock when you wake. "Light and darkness are cues your body needs for alertness and sleepiness.