This is a Neapolitan parlor song arranged for piano solo that captures the lighthearted charm of the era. It is distinctive for its rhythmic drive and typical 19th-century Italian melodic sentimentality.
The primary challenge is maintaining a consistent dance-like pulse while shaping the Italianate melodies.
Comparable difficulty and character — good candidates for what to learn next.
'A vita è nu suonno! is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of 'A vita è nu suonno! lasts about 3 minutes.
'A vita è nu suonno! is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include 'E capille 'e Carmenella by Salvatore Gambardella, 'O marenariello by Salvatore Gambardella, 'Na bella nuvità by Salvatore Gambardella — see the full similar-pieces list on this page.