I prefer to write first drafts as soon as possible after waking, so that the oneiric inscape is still present to me.
The effect is an oneiric blend on his computer screen that he moves through, struggling with the touchpad mouse.
If the former be a question of sleep or of the moments preceding sleep, it is oneiric or pre-oneiric.
oneiric o·nei·ric (ō-nī'rĭk)
Of, relating to, or suggestive of dreams.
Of, relating to, or characterizing the clinical state of oneirophrenia.