You cannot use actions or reactions. Your Speed drops to 0 and you cannot benefit from increases to Speed. You receive no information from your senses. You grant 3 boons on rolls against you, and you automatically fail all attribute rolls.

If you are unconscious because you are sleeping naturally, you stop being unconscious when a creature uses an action to shake you, kick you, or do something else to waken you. A loud noise might remove the affliction if you succeed on a luck roll. Time spent sleeping counts as resting for the purpose of healing damage (see Rest on page 30). If your sleep is uninterrupted, you wake up naturally whenever you choose.