Does Sleep Quality actually make a difference, or is it overhyped?

The evidence base for this topic is comparatively weak and diffuse: available studies address related but distinct subjects, such as loneliness and sleep, herbal supplements (ashwagandha, lemon balm) and psychological well-being, and gut-brain-axis nutrition, none of which directly test structured interventions to improve sleep quality itself. Weighing the data: Sleep Quality looks an early-stage, lower-priority area for now — the evidence is only moderate (50/100), and its estimated impact (35/100) is on the lower end too.