You spend forty-five minutes arranging your body like it's a hostage negotiation—left side, right side, back, stomach, one leg out, both legs in, pillow between the knees, pillow gone, pillow back but folded—convinced that somewhere in this human Tetris puzzle is the exact angle where sleep lives. By 3 a.m. you've accepted that your mattress has decided you're the problem, and it's spending the night as comfortable as possible without you on it.