Using the excuse that "I am too tired" so that I can sleep a little longer in the mornings is clearly a justification, and oh god I really sell this one too, like stretching and moaning and moving lethargic - "Oh just a few minutes longer" Oh Please. This is not valid because any morning I have to get up to go to work, I just get up, instantly, as soon as the alarm goes off - this proves that I in fact can "get over" tiredness by willing myself up, in one breath as I do it every morning when I work - thus, "I am too tired" is not actually real. I just make it. No matter how tired I am in the mornings when I work, or have something "time sensitive" that requires direction, I get up. proving I am in fact able to get up even though it may "seem like" I am really tired.