drowsiness, sleepiness, somnolence

rem sleep, circadian rhythm, sleepiness, nrem sleep, alertness, norepinephrine, restfulness, overactivity, melatonin, excitability, hypersomnia, insomnia, arousal, cataplexy, parasympathetic nervous system, drowsiness, doxepin, potentiation, cognition, hypnotics, nrem, autonomic nervous system, serotonin, adenosine, catecholamine, levodopa, dyskinesia, serotonergic, vasopressin, glucocorticoid, myoclonus, sleep, neurohormone, autoregulation, awakenings, scopolamine, beta endorphin, paresthesia, dopamine, grogginess, startle reflex, corticosterone, excitatory, vasodilation, methylphenidate, neurotransmission, somatosensory, pineal gland, monoamine, hyperalgesia, diurnal, neuroleptic, neurogenesis, cortisol, synaptic, satiety, habituation, noradrenaline, midbrain, somnambulism, hypothalamic, polyuria, sensorimotor, buspirone, metabolism, secretion, emotional arousal, narcolepsy, hypopnea, status epilepticus, rhythmicity, fluoxetine, phenothiazines, peristalsis, thermogenesis, hypovolemia, adrenocorticotropic hormone, satiation, hippocampal, neuropeptide, diastole, primidone, hindbrain, forebrain, chlorpromazine, nicotinic, metabolic, repolarization, acetylcholinesterase, enuresis, anhedonia, gamma aminobutyric acid, prodrome, hyperphagia, neurochemistry, visual cortex, limbic, ghrelin, nystagmus, vasomotor, sleeplessness, hallucinations, waking, restlessness, quiescence, mindfulness, passivity, helplessness, hunger, receptivity, contentment, darkness, debility, forgetfulness, inactivity, nervousness, somnolence, unconsciousness, watchfulness, absence, circadian, phenological, photoperiodic, hormonal, deformational, disintegrative, homeostatic, maladaptive, morphogenetic, psychophysiologic, relaxation, abnormal, acculturative, circulatory, desynchronized, developmental, diel

arousal, vigil

temporary state, waking

sleeplessness