Sleep Teases A Man
Markov took off his boots and, with a deep breath, lay down on the divan.
He felt sleepy but, as soon as he closed his eyes, the desire for sleep immediately passed. Markov opened his eyes and stretched out his hand for a book. But sleep again came over him and, not even reaching the book, Markov lay down and once more closed his eyes. But, the moment his eyes closed, sleepiness left him again and his consciousness became so clear that Markov could solve in his head algebraical problems involving equations with two unknown quantities.