Here is a publication that might be of interest to you. Central sleep apnea is the major cause of SIDS, which the authors of this paper aim to diagnose using signal processing and machine learning techniques.

https://www.researchgate.net/publication/274309800_Low_Cost_High_Precision_System_for_Diagnosis_of_Central_Sleep_Apnea_Disorder

This if put into practice and made commercial could perhaps help reduce the number of deaths due to SIDS

Conference Paper Low Cost, High Precision System for Diagnosis of Central Sle...