Arropado comes from the verb arropar, which means to cover or tuck someone in. It's a very cozy and tender word that evokes a strong feeling of being wrapped up snugly and kept warm.
In the song, Milo J sings, "Quiero despertar, arropado en tu manta" (I want to wake up, wrapped up in your blanket). He uses this word to perfectly capture the song's theme: a deep desire for comfort, safety, and intimacy with another person.
In "TU MANTA", Argentine rapper MILO J brings a sweet, comforting vibe that feels like finding warmth on a freezing morning. The whole track revolves around a cozy metaphor: wanting peace beside someone special. He drops English right away with "Vení, quiero verte darling" ("Come, I want to see you darling"), before describing how safe this person makes him feel with lines like "Quiero despertar, arropado en tu manta" ("I want to wake up, bundled in your blanket"). Here, "arropado" comes from arropar, which means wrapping yourself up snugly in bedsheets or warm clothes.
He recognizes the harsh realities of life with "Sé que el mundo es bruto, y ya sufriste mucho" ("I know the world is rough, and you already suffered a lot"), offering to help fix their broken spirit by saying "Puedo ser la luz, que te cure las alas" ("I can be the light that heals your wings"). Even though he admits he is unsure if it is true love—confessing "Dicen que es amor, yo no sé en verdad" ("They say it's love, I really don't know")—he cannot deny the dizzying high, noting "Pero me sentí en la luna" ("But I felt over the moon"). It is a warm, honest track about finding shelter in another person when everything else feels grey.