I experience a similar kind of state before I fall asleep, but not every day. I sense the trigger of going into it, but most of the time I suppress it due to ti

I experience a similar kind of state before I fall asleep, but not every day. I sense the trigger of going into it, but most of the time I suppress it due to tiredness or lack of interest. However, there are certain days during which, I go into the state of super alertness, where I get amazing clarity of thoughts; one would wish to be in it while solving a new coding problem or trying to write super intricate code.