Notch intended to include a "Sky Dimension", which would be the polar opposite of the Nether. It was to be included in the Beta 1.8 Adventure Update. Players would have been able to enter a world made up of floating formations once they slept in a bed. However, Notch delayed this new area until he could make the Nether more interesting. Eventually, the Sky Dimension was converted into the End, though the Sky Dimension was unintentionally able to be accessed in Beta 1.6 and 1.7.