Got my sleep apnea machine! Can't wait!

Four friends were hanging out together playing poker, smoking cigars, and generally talking their days. Of course, the topic eventually turned to sex. One of them, a very tired and ragged man wearily stated, "You guys may think it's awesome but it's not. My wife demands we make love once a night." The second man, a smile on his face, "Well I suppose I'm better off. My wife and I make love once a week." The third guy, looking a little forlorn, said, "Man you are lucky. My wife and I only make love once a month!" The fourth guy looked very excited, and was literally bouncing out of his chair with excitement. His three friends look at him. "When do you and your wife make love?" the once-a-week fellow asks him. He shouts, "Once a year!" And his friends look at each other confused. "Then why are you all happy?" the once-a-month guy asks. "Because tonight's the night!"