That horrible feeling of shame and regret that descends upon a person, often who has Snooze Syndrome, when they finally get out of bed following repeated snoozing (usually more than four snoozes). The guilt is typically amplified because it is coming immediately after the wonderful feeling of euphoria from the snoozing itself.
John: Why are you so down?
Jane: I was in bed on my 12th snooze and feeling so nice and snuggly. Then I finally got up and now I am in a bad mood.
John: Sound like you have a bad case of snooze guilt.
Jane: Piss off.