According to a 2011 study by hotel chain Premier Inn, people who sleep on the left side are better off than those who sleep on the right side. One of the examples they give:

In fact, 31% of ‘lefties’ love their job compared with just 18% of ‘righties’

Is there any supporting evidence for this claim?

I don't think this is a case of illusory superiority, which another claim in the article reeks of:

And two-thirds of those who doze on the left reckon they are calmer than their partner in a crisis.

  • "Better off" is too vague. I went to focus the title on an actual claim, but there are several given here. Please choose one. – Oddthinking Jun 7 '18 at 15:14
  • @Oddthinking right, I know the probable cause of the second claim so let's focus on the first one. The questions you linked to were about the left side of the human body, not the bed. I can see physiological grounds for those claims, but I'm having a hard time with this one. – Glorfindel Jun 7 '18 at 15:26
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    Yes, I realised the subtle difference after I posted them, and deleted them. Sorry for the distraction. Thanks for the fix. – Oddthinking Jun 7 '18 at 15:33
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    No problem, thanks for helping me refine the question. – Glorfindel Jun 7 '18 at 15:39
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    Assuming that the stats are true (big assumption) it sounds like an awful lot like a correlation implying causation fallacy tylervigen.com/spurious-correlations – GordonM Jun 7 '18 at 16:39

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