Insufficient deep sleep disrupts memory consolidation, metabolic regulation, and immune readiness. Restoring a stable circadian rhythm is foundational to whole-body recovery. Theanine calms cortical beta-wave chatter, while sustained-release melatonin synchronizes the suprachiasmatic nucleus for uninterrupted cycles. Magnesium and an herbal sleep blend of valerian, lemon balm, and passionflower relax smooth muscle and GABA pathways, easing patients into restorative slow-wave stages.