Gintama': Futon ni Haitte kara Buki Nokoshi ni Kizuite Neru ni Nerenai Toki mo Aru
Genres: Action, Comedy, Sci-Fi
Type: Special, Episodes: 1
Aired: Apr 3, 2015
Studio: Sunrise
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Bundled with limited edition of the 58th Gintama manga volume.

The tagline for the bundled anime reads, "It's time for all the Yorozuya members ...to wake up just one more time."

(Source: MAL News, edited)