Gintama': Futon ni Haitte kara Buki Nokoshi ni Kizuite Neru ni Nerenai Toki mo Aru
Japanese title: 銀魂 〜布団に入ってから拭き残しに気付いて寝るに寝れない時もある〜
Type: Special
Episodes: 1
Source: Manga
Genres: Action, Comedy, Sci-Fi
Studios: Sunrise
Duration: 24 min
Rating: PG-13 - Teens 13 or older

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)