NREM sleep is associated with:-

NREM sleep generation is associated with 5 anatomical sites: * Basal forebrain area Thalamus Hypothalamus Dorsal raphe nucleus Nucleus tractus solitaries of the medulla Preoptic lesions produce hyposomnia, whereas electrical and thermal stimulation of this area produces sleep changes. Thalamus (especially reticular formation) plays an active role in production of coical sleep spindles and delta waves.