在床上使用笔记本电脑不好吗？
not necessarily. while you should try not to make it a habit, if your sleeping posture is right, the screen is set to go off when you sleep, and the system positioning is okay, then there’s no harm.
most laptop engineers design the fans to be under the laptop boards. this means they dissipate heat through the bottom of the laptop. thus, blocking the fan vents is the equivalent of covering your nose with nylon – don’t just do it.