I get really mad when seeing people in movies covering sleeping people with a blanket. Who are they to dictate someone sleeping how well they should be covered? I always leave an arm or leg out to not overheat and instinctively pull them back in when it gets cold. Now imagine someone would cover me with my blanket. I would wake up sweating and put too many extremities out of the blanket, fall asleep and cool down too much due to overcompensation.
Honestly, fuck these people!