Oxygen reduces sympathetic activity, so for example in patients with heart failure or sleep disorders it is actually helpful.
I've heard that enhances cognitive awareness too, but from a quick look I didn't find any studies online to support the theory. Generally speaking, makes sense: we breath O2 and release CO2. When preparing to sleep the O2 quantity will be diminished considerably in the room. So it's better to allow as much, as possibly bigger % of O2 in the room.
But other than that, I know just know that patients with COPD and sleep deprivation disorders use oxygen therapy to get better. How exactly it works, I don't know though nor I can be 100% that enhances cognitive awareness.
ps. Air quality is usually associated with room temperature. Room temperature IMHO can have an even bigger negative effect on sleep quality. Another important thing not mentioned is bed/pillow quality.
EDIT: Changed H2O to O2 after being pointed out my stupid error.
I've heard that enhances cognitive awareness too, but from a quick look I didn't find any studies online to support the theory. Generally speaking, makes sense: we breath O2 and release CO2. When preparing to sleep the O2 quantity will be diminished considerably in the room. So it's better to allow as much, as possibly bigger % of O2 in the room.
But other than that, I know just know that patients with COPD and sleep deprivation disorders use oxygen therapy to get better. How exactly it works, I don't know though nor I can be 100% that enhances cognitive awareness.
ps. Air quality is usually associated with room temperature. Room temperature IMHO can have an even bigger negative effect on sleep quality. Another important thing not mentioned is bed/pillow quality.
EDIT: Changed H2O to O2 after being pointed out my stupid error.