This short report describes respiratory indices of polygraphies (PG) performed to investigate several sleep-related disorders of breathing in children. It refers to the work of Michelet et al., Successful home respiratory polygraphy to investigate sleep-disordered breathing in children, Sleep Medicine [1]. Indications for PGs were grouped according to 6 categories: craniofacial malformation, neuromuscular disease, obesity, suspected obstructive sleep apnea (OSA), prematurity, and other. The reported data concern the initial interpretable PGs (N = 289); initial was defined as performed for the first time in any subject. Non-interpretability was defined as absent or unreliable oxygen saturation by pulse oximetry (SpO₂), and/or airflow and respiratory inductance plethysmography (RIP) flow trace signals during time analyzed. Analyzed time is reported. In a subset of patients, transcutaneous carbon dioxide partial pressure (p_tcCO₂) was also measured. Data may be re-used for comparison in future validating research for PGs in children [2].