#3 Straight boarder.
A person sleeping in soldier position on their back with arms straight down at their side is known to be very quiet and reserved kind of people.
They are also known to think highly of themselves and can be strict or demanding.
#4 Side logger.
The sleeper here slumbers on their side, legs extended straight and arms by their sides. These people are seen to be calm and trustworthy.
A person sleeping in this position are very social and easygoing.