Restless sleep is characterized by fragmented sleep patterns, repeated nighttime awakenings, increased body movement during sleep, shallow sleep depth, and reduced morning restoration despite obtaining a normal number of sleep hours. Unlike insomnia, individuals with restless sleep may fall asleep without major difficulty but experience poor sleep continuity, unstable sleep architecture, or insufficient deep sleep phases. Biological contributors may include circadian rhythm disruption, evening cortisol elevation, unstable glucose metabolism, autonomic nervous system overstimulation, excessive late-evening stimulation, electrolyte imbalance, inflammatory signaling activity, dehydration, digestive discomfort, and inadequate intake of nutrients involved in neurotransmitter production and neuromuscular regulation. Normal sleep physiology depends on synchronized circadian signaling involving melatonin release, serotonin turnover, hypothalamic regulation, cortisol timing, autonomic balance, mitochondrial energy regulation, and neurotransmitter stability. Disturbances in glucose regulation may contribute to nighttime sympathetic nervous system activation and fragmented sleep patterns. Elevated inflammatory mediators and oxidative stress may also interfere with sleep depth and recovery biology. Magnesium and potassium participate in muscle relaxation, membrane potential regulation, ATP metabolism, and neuronal signaling stability. Tryptophan-containing plant foods contribute amino acid substrates involved in serotonin and melatonin pathways. Fiber-rich whole plant foods may additionally support gut microbiome signaling connected to circadian regulation and neurotransmitter balance. A whole food plant-based dietary pattern emphasizing intact legumes, leafy greens, whole grains, seeds, antioxidant-rich fruits, and mineral-containing vegetables may help support stable evening metabolism, hydration balance, neuromuscular relaxation, antioxidant defenses, and circadian rhythm regulation. Minimizing highly processed foods, excess sodium exposure, refined sugar fluctuations, and stimulant-heavy evening intake may help support deeper and more restorative sleep patterns. Foods naturally rich in magnesium, potassium, flavonoids, polyphenols, carotenoids, and calming phytochemicals may help support autonomic balance, oxidative stress defense systems, and neurotransmitter regulation associated with sleep quality. Evening meal timing may also influence sleep continuity. Large late-night meals, refined carbohydrate spikes, excess caffeine intake, and low-fiber dietary patterns may alter autonomic signaling and nighttime glucose stability. Whole plant foods with slower digestion patterns, natural mineral density, and fiber-rich carbohydrate structures may help support steadier overnight metabolic activity. Hydration balance, healthy circulation, nervous system stability, and oxidative defense mechanisms are interconnected biological systems involved in restful sleep physiology.