&gt; None .... continuous sleep pattern .... Middle East<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Tikkun_Chatzot" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Tikkun_Chatzot</a> (Jewish prayer said about an hour after midnight).<p>I don&#x27;t know if Jews had a different sleep pattern than their neighbors, but I can&#x27;t imagine they would.<p>At the time the prayer was instituted Jews mostly lived in what is now Iran&#x2F;Iraq and in Israel. They were expelled and ended up in Europe only later.