It's nighttime at the Big Blue House. Bear takes out the trash. Then, Bear is all set to sit on his swing and read a good book. Then, Ojo shows up; it turns out that there's a sleepover over scheduled tonight that Bear completely forgot about it. Before he knows it, Tutter, Ojo, Treelo, Pip and Pop are all there and ready for the big sleepover, despite his protests that they're not ready. He tries to settle back down to his book, but there's a lot to do during a sleepover. He prepares his friends some snacks, reads them a story and supervises as they all brush their teeth. Finally, everyone is ready to go to bed, after some final, special good-night touches. Ojo has difficulty getting to sleep, but eventually dozes, only to be awakened by a bad dream. Bear helps her feel better while helping her get back to sleep by singing the song, "Go to Bed, Sleepy Head", and then finds Shadow. In the Shadow Segment, Shadow sings her own special version of the lullaby "Hush, Little Baby," while trying not to disturb the sleeping characters.
This episode has received overwhelmingly positive reviews from disney and muppet fans. A lot of users, including Pixarfan2003edcp, think that this is the best bear in the big blue house episode ever made, and not only that, it is also the most popular and well known bear in the big blue house episode, with over 3 million views on it's YouTube video on the UK playhouse disney channel. If someone ever reviews the episode, they would probably give it a 10/10 for the seal of approval.
Songs in this episode include Under Your Blanket, Brush Brush Bree, and Go to Bed, Sleepy Head.
The title of this episode is a reference to Raymond Chandler's 1939 novel The Big Sleep. In the novel, the phrase refers to death, not sleep itself.
Tutter holds a sleepover of his own in the fourth season episode "Tutter's first big sleepover bash."
This episode is available on the Sleepy Time with Bear and Friends DVD, and Bear in the Big Blue House: Volume 8 VHS.