* AmericansHateTingle: The OVA was a genuine hit in Japan, creating two sequels, ''Sleeping'' and ''Bathtime'', but anime fans in other countries tend to view the [=OVAs=] as creepy and generally pointless fanservice vehicles.
* CriticProof: Literally every review by any serious anime critic has condemned the series[[note]]most notably, [[http://www.themanime.org THEM Anime Reviews]] reviewed all 3 [=OVAs=] separately, and all 3 got a 1-star rating, only because the site doesn't have a lower score[[/note]], yet as noted on the main page, all entries of this franchise sold '''incredibly''' well.
* HilariousInHindsight: As [[http://web.archive.org/web/20100221022509/https://www.japanator.com/japanator-does-not-recommend-sleeping-with-hinako-13573.phtml Japanator]] noted, a similar concept to ''Sleeping'' was seen in a 2004 exhibit in the London National Portrait Gallery that amounted to an hour-long video of UsefulNotes/DavidBeckham sleeping, ''six years'' before ''Sleeping'' was made.