Why do we say: “I got up on the wrong side of the bed?” I don’t know if this is true, but this is what I found on the internet:
IT has to do with the superstition about hands. Right hand was good. Left was bad. Comes from the Latin word for left which is sinister. It also has to do with eating , but that is another story.
In olden times a man had to get his weapons quickly if disturbed in the night. So, they were kept on the right side of the bed which was usually toward the back of the room. The wife slept on the left side of the bed for this reason. If a man came to bed late, the wife occupied the right side of the bed. Since he was probably drunk, he woke up with a hangover and got out of bed on the left (sinister or wrong side) of the bed and was in a bad mood.
This reference points to an interesting difference from the common “I’m cranky for no reason” talk of a bed’s side. It turns out the wrong side is more about where you laid the night before rather than how you simply find yourself when you wake up.
How can you position your life for opportunity over regret? What about life today could make you wake tomorrow to gladness instead of crankiness?
Or, as another idiom goes: You’ve made your bed, now lie in it.