Zzz

 is the fourth single by Sasaki Sayaka. It was released on May 25, 2011, and peaked at #19 on the Oricon single chart.

Single Information
The lead track Zzz was used as the first ending theme for the anime Nichijou.
 * Catalog Number: LACM-4809
 * All Lyrics: Maeyamada Kenichi
 * All Compositions: Maeyamada Kenichi
 * Arrangement: Maeyamada Kenichi (Track 1-3), Itagaki Yusuke (Track 4)

Tracklist

 * Zzz
 * 1) Gakko Gakko LIFE!! (ガッコーガッコーLIFE!!)
 * 2) Zzz (Acappella Version)
 * 3) Zzz (Bossa Nova Version)
 * 4) Zzz (Instrumental)
 * 5) Gakko Gakko LIFE!! (Instrumental)