Blood oxygen levels during sleep should be at a 95 percent saturation which is considered normal according to the american sleep apnea association. You can attach it to your finger and leave it on and your oxygen level can be monitored throughout the course of the night if you are in a sleep center undergoing testing which medical personnel are supervising. Is There A Cure For Sleep Apnea Sleep Apnea What Is Sleep Apnea Severe Sleep Apnea At sea level a normal blood oxygen level saturation is usually 96 97. Sleep apnea oxygen level 75 . Rest easy many options to increase blood oxygen levels thankfully we live in a time when many options abound for those who want to boost their body s oxygen saturation either to treat their diagnosed sleep apnea or to simply enjoy all the benefits of more restorative sleep. The odi is typically measured as part of standard sleep studies such as a diagnostic polysomnogram home sleep apnea testing or with overnight oximetry. Patients with breathing pr...