Hipnagogia Kraszewskiego — czyli mroczne korytarze imaginacji

Hypnagogia is the moment which exists between an awakening and the sleep, in which we perceive
and feel everything as if we were still awake. As the presence of someone is appeared, we listen to voices,
but can neither speak nor move. It is the moment of the hypnagogia or transition between the wakening
and the sleep. Józef Kraszewski has also feeling of this terrifying experience, which is surprisingly common.
As an old man he had visual hallucinations. He described his experiences in Sleepless nights.