forty winks
...that the idiom forty winks relates to the biblical use of the number 40, thus meaning just the right amount of sleep?
...that the <a href="./Idiom" id="mwC7k" rel="mw:WikiLink" title="Idiom">idiom</a> <b id="mwC7o"><a href="./Forty_winks" id="mwC7s" rel="mw:WikiLink" title="Forty winks">forty winks</a></b> relates to the <a class="mw-redirect" href="./Forty#In_religion" id="mwC7w" rel="mw:WikiLink" title="Forty">biblical use of the number 40</a>, thus meaning just the right amount of sleep?