Uncultured people are given away by their habits. It is not necessarily a rude person and one who is unable to string a few words together to form a sentence.
That's why they are habits, because they are mostly noticed by those around you.
Here are some habits of a person with low intelligence that manifest in bed.
Sleeps in clothes
Reluctance to undress or change clothes before going to bed indicates low intelligence.
It is possible that a person finds this method convenient and fast.
But from a scientific point of view, sleeping in outerwear reduces its quality, which affects brain function.
Doesn't follow the regime
Having every opportunity to do so, a person tries to go to bed at the same time, that is, adheres to a daily routine.
The lack of a daily routine does not indicate any outstanding abilities.
Rather, it all comes down to the negative impact of the habit on cognitive functions, memory problems, and decreased concentration.
Sleeps with the TV
Even if a person manages to fall into deep sleep with the TV on in the background, his brain still cannot fully rest.
The noise of a working TV and the light from the screen interfere with normal rest, which again affects the functioning of the brain.
For reference
A habit is an automatically reproducible action, the execution of which is initiated by some signal, performed and completed with a feeling of pleasure.