Like his previous mashup mixtapes
Mouth Sounds,
Mouth Silence, and
Mouth Moods, its source material is primarily
Top 40 hits from the late 20th and early 21st centuries; he also sampled classical music from the 19th century ("Brithoven" and "Ain't").
Hidden messages When downloaded from Cicierega's website, a secret message is hidden in the track info for
Mouth Dreams. Each track contains a one-letter comment; when the tracks are arranged in reverse alphabetical order by title, the comments spell "I can't think of a secret message". The mixtape's cover art contains several hidden references. The title and Cicierega's name feature sparkles, spelling out "NiCe MoDems" when isolated, referencing the mixtape's conclusion of a
dial-up modem. A
Wingding character is within each of Cicierega's pupils, representing the English letters "M" and "D" (referring to the mixtape's title
Mouth Dreams).
Ewoks are reflected in Cicierega's glasses, referencing the track "Limp Wicket" featuring samples from
Meco's "
Ewok Celebration". ==Reception==