Shocking! A Reborn Loli Wants to Find Happiness, You Know

After dying unexpectedly, she somehow reincarnates as a little girl. All she wants is to sleep, but her peaceful life keeps getting disrupted. Can the protagonist, who was once a man but is now a woman, find happiness and enjoy a carefree life where she never has to worry about eating, drinking, or sleeping? Oh my, this is so hard. (No System + no male lead + not a mindless story + reincarnation with lots of thought)