People who sleep in the fetal position often appear to be strong, but they're actually quite sensitive deep down. People who take the thinker position are able to be more vulnerable and show their emotions, but they're also very sensitive at their core. Both are essentially sleeping in very protective positions, but the thinker is less afraid of showing their feelings.
Being more open emotionally definitely seems like a good thing, but one of the thinker's downfalls is that their emotions can be very extreme. When they're up, they're up and when they're down, they're really down. It can make them slightly 'high maintenance' as friends or partners, because you never know which way they're going to go. We find that the highs generally outweigh the lows in these types of friendships, so bring on the thinkers, we say!