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As far as I know, no animal sleeps with a pillow/support under their heads. Why then do we need to keep a pillow?

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    $\begingroup$ Many, many animals make beddings and nests. Not unique to humans at all. $\endgroup$
    – Bryan Krause
    Commented Aug 23, 2020 at 14:53
  • $\begingroup$ Yes agreed. But specifically do they have to use a support for their necks? $\endgroup$
    – Kashmiri
    Commented Aug 23, 2020 at 15:52
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    $\begingroup$ humans can sleep fine without pillows. $\endgroup$
    – John
    Commented Aug 24, 2020 at 1:13
  • $\begingroup$ Our cat does it all the time ;-) $\endgroup$
    – AliceD
    Commented Sep 1, 2020 at 18:30

1 Answer 1

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This is because the pillows keep the head align with body making it easier for the spine to maintain its natural curve. It reduces the tension in the lower dorsal region of neck. Many animals are found to be using pillow like substitutes for the same reason.

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  • $\begingroup$ Which animals .? $\endgroup$
    – Kashmiri
    Commented Aug 24, 2020 at 3:37
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    $\begingroup$ @YasirSadiq mamals in general use pilows most often their front legs/paws humans too putting our arm under our head while we sleep. $\endgroup$ Commented Aug 24, 2020 at 5:11

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