This is the 14104th most frequent German word.
geschlafen
"Geschlafen" means "slept."
Here, 'geschlafen' is used in the past tense to indicate a completed action of sleeping.
Ich habe gestern Nacht sehr gut geschlafen.
I slept very well last night.
In this sentence, 'geschlafen' remains in the context of past tense, narrating a condition relating to the act of sleeping.
Obwohl es laut war, hast du tief geschlafen.
Even though it was noisy, you slept deeply.
The word 'geschlafen' here conveys the past perfect aspect, showing a state of sleeping that occurred after another action.