Even working from home, closing the laptop doesn't mean the work closes in your mind too. An unfinished task or an unanswered message keeps quietly running in the background.
That's why the “shutdown ritual” some companies recommend actually works, spending three to five minutes at the end of the day noting what's left for tomorrow, then deliberately changing something, turning off a light or switching the sound in the room.
That small ritual tells your mind the day is over. Simple, but it's the actual difference between feeling rested in the evening and trying to fall asleep with work still running.