So last night I had this small dream where I was running, and I then just jumped into water. My dream started fading (I was waking up) and while I was waking up, I was coughing. When I was awake in my bed, I thought something like "I was probably coughing because I was just in water" (I actually thought I was really in water, even though I knew I just woke up from a dream). So, does dream logic carry over for a few seconds into the real world, or was this probably a false awakening?