The atmosphere that you take a nap in. Often includes candles, soft music, and a comfy blanket.
I just got a new yankee candle, it'll be the perfect addition to my napmosphere.
by kh28 January 12, 2014
When you are driving and all your passengers fall asleep. This creates an atmosphere more difficult to stay awake, imperiling the journey.
Please stay awake, I can't drive in the napmosphere.
by Peter Jubb March 26, 2012