How do i smuggle food up to my room?

okay so i really want a pop tart right now, but it's late and i feel like my mom will get disappointed with me considering that i just had the longest conversation with her about becoming more active and starting better eating habits. i just want a pop tart so bad. what should i do, or how should i get it up to my room? so either you motivate me to makje a good choice or give me an idea of how to get it.