As all cat owners know, cats are extremely flexible, so the splooting position is nothing more than stretching. It is also a very relaxing position for their backs, which is why cats love to sploot.
When cats lay on their bellies with their fore and hind legs spread out on the floor, they could also be trying to cool down. They take this position to expand the contact area with the floor, which is usually cool. Doing this, they can lower their body temperature quite quickly.
When your cat has its fore legs spread out in front of it and both its hind legs stretched all the way behind itself, that is the complete sploot. That is the maximum level of relaxation for the cat’s joints, muscles, and spine.
When one of your cat’s legs is stretched out all the way back, but the other is neatly tucked in under its belly, it is doing the half sploot. Because sometimes, your cat needs to do it one leg at a time.