The archive contains time dependencies of recurrent indicators for night recordings of fifteen generally healthy subjects (N = 15; age: 51.5 ± 29.5 years; median age: 42 years; male/female ratio: 8/7). For each of them, nighttime EEG recordings were performed twice using six leads. In accordance with the hypnogram (they are also attached to the data), the recording was divided into 30-second segments corresponding to different stages of sleep. The stages of sleep were marked out earlier by a somnologist. For each segment, a recurrent indicator was calculated in a classical way, after which a final file was generated with recurrent indicators for all six channels for all time intervals. The proposed data can be used to verify the results of recurrent analysis using polysomnographic recordings in small groups of patients.