It s bad even if air doesn t flow into or out of the case here however if your pc sinks into the carpet a bit heat can build up underneath due to the lack of airflow.
Carpet makes the laptop heat up.
Use a steel flat bar as an external heat sink.
Consider using a heat sink.
We develop a lot of habits like browsing in bed that can cause overheating issues.
It works because your computer has to heat up more mass before it overheats.
You d be surprised at how quickly the heat can build up when those vents are blocked.
If these vents are covered due to the location of the computer dust accumulation or other reasons this critical airflow is stopped and warm air will build up inside the casing.
Clean the vents and inspect the fans dust and debris can accumulate in and around the air vents over time obstructing the airflow and causing the fans to work harder than normal to remove the heat.
Of course if you have short carpet on your floor the pc may be able to sit on that carpet with plenty of airflow underneath.
A lot of laptops are designed with their air vents on the bottom so setting the laptop down on soft bedding or carpet for prolonged use is a bad idea.
This is likewise a direct result of unnecessary dust and flotsam and jetsam sets between the fan and the warmth sink.
Poor ventilation can also be a significant cause of overheating.
Do you realize what makes your laptop overheat.
It will only work if your laptop has a metal case and it feels hot.
This also means that the larger the bar the longer it will take for it to overheat.