Table 1.

An example of the qualitative content analysis

Meaning unit	Condensed meaning unit	Codes	Sub‐categories	Main categories	Theme
The only thing I know is that my sleep does not make me rested, it does not matter how much I sleep; I am always just as tired. I think it may be because I sit too much with the cell phone, etc., and that I think too much about things, always a lot in the head.	My sleep does not make me rested, no matter how much I sleep; I am always just as tired. Sitting too much with the mobile, thinking too much about things, always a lot in the head.	Not rested‐despite sleep.	Tired despite good sleep.	Poor sleep habits.	Imbalance between requirements and preconditions.
		Sitting with the mobile.	Mobile, computer or tablet use.	Technology use.
		Thinking too much.	Thinking a lot.	Existential thoughts.
		Always a lot in the head.