# Dreams, agency and judgement **Keywords:** Sosa, Descartes, Dream scepticism, Judgement, Mental action When epistemologists focus on questions or problems directed at the nature of knowledge, particular domains of knowledge, or sources of knowledge, they usually assume that the knowing subjects they discuss are in a particular state of consciousness. They usually assume that the subjects in question are awake. In consequence, the epistemological significance of that background state of consciousness—wakefulness—is rarely discussed explic **Abstract:** Sosa (Proc Addresses Am Philos Assoc 79(2): 7–18, 2005) argues that we should reject the orthodox conception of dreaming—the view that dream states and waking states are “intrinsically alike, though different in their causes and effects” (2005: p. 7). The alternative he proposes is that “to dream is to imagine” (2005: p. 7). According to this imagination model of dreaming, our dreamt conscious beliefs, experiences, affirmations, decisions and intentions are not “real” insofar as they are all merely imagined beliefs, experiences, affirmations, decisions and intentions. This paper assesses the epistemic implications of Sosa’s imagination model of dreaming. Section 1 outlines and assesses the reasons Sosa gives for thinking that his imagination model of dreaming introduces a new dimension to debates about dream scepticism. Sosa argues that his imagination model of dreaming invites a more radical version of dream scepticism, and also makes available a novel and more powerful response to dream scepticism. Objections are raised to both of those claims. This leads to a challenge to Sosa’s imagination model of dreaming. This is the concern that Sosa’s imagination model of dreaming lacks the resources to accommodate the intuition that there is something illusory or misleading about one’s situation when one is dreaming, and as a result his account of dreams fails to accommodate the common intuition that there is a sceptical problem about dreaming but not about dreamless sleep. Section **Authors:** [[soteriou]]