I really enjoyed the scrambled text bit and text-speaking overall, and minimalistic tune at the end . Really adds to the uncertainty and uneasiness of it.
For me it leaves a long-lasting feeling that the bad dream never ended and it will keep going. The dream itself is dangerous and functions as the distorted anticipation to the the future or the past. The only way to stop its effects is to never let the events of it happen, to never put yourself into them, which is why the character calls off sick, never going to work, unaccepting the possibilities of the dream repeating. It might be dangerous for others and is certainly harmful to him, as he loses his job, but he just accepts it knowing that it is only going to get worse if he continues.
Also cool circular-window effect. I noticed that dream's field of view works similar to this, but I never imagined it as a circle.