What Should Oxygen Levels Be When a Person Is Sleeping?

When a person is sleeping, that person's oxygen level should be at or above 90percent saturation, according to the LAM Foundation. If a person has a difficult time keeping their oxygen level at or above 90percent saturation while sleeping then he or she should be put on an oxygen therapy plan.

When people sleep, they automatically breathe at a slower rate because they do not need to use as much oxygen, as stated by the American Thoracic Society. Therefore people who have lower oxygen levels during the day will often have even lower levels while they are sleeping, which means that they may require oxygen therapy while they are sleeping but not while they are awake, according to the American Thoracic Society. The general rule is that patients with a 94percent saturation level will not have an oxygen rate of below 88percent while sleeping and should be fine, as stated by the UCSF Medical Center. It is patients that fall below this "awake" saturation level that will most likely require oxygen therapy while sleeping.

Oxygen therapy is provided through oxygen devices and delivered through a tube into the patient's lungs via their nose or their mouth depending on the machine reports the American Thoracic Society. The oxygen therapy plan will address at what times the patient needs to use the oxygen machine, as well asthe percentage of oxygenneeded. Patients that get too much oxygen will breathe slower so it is crucial that the doctor run tests before prescribing oxygen reports the UCSF Medical Center.