When sleeping how do the respiratory work

As we sleep, breathing slows down and we do not take in or expel as much air as when awake. As muscles relax during sleep, the upper airway narrows and leads to 200% increase in upper airway resistance. As a result, respiratory muscle activity is reduced and increased work of breathing is needed.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the