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You are not alone and I have made that mistake too. At that time I wanted to bet on a serie A match, without realizing it I bet on a women serie A match. 
I even made an all in bet on a dice game when I hadn't changed the winning percentage.Sometimes we are just not careful when placing bets or we are not focused when we feel sleepy. Since making that mistake, I have become more careful before placing a bet, always checking whether I am betting on the right choice.
I don't know how you can accidentally mix up real football and simulated football, but I completely agree with women's football - I've been caught doing it myself. It's especially unpleasant to find a mistake after you've picked a long multi-bet (and sometimes in a hurry to make a bet with good odds) since hedging or cashing out a multi-bet is very expensive.
And yes, if I don’t get enough sleep, I check everything several times because my attention becomes scattered.