Spanish Experts, please, I need translated in to english?

My friend tells me about a contest in our school to earn money for our new uniforms. The uniforms are very expensive. The contest is a tennis marathon and the student can participate for hours. We can win a prize. But I can't find my racket. So I went back home and I found it in my room. We ended and... I'm so tired! Know I'm going to sleep a lot. Do you sleep a lot when you play for so long?