
My children, as sentient reasoning creatures, do the cat one better and apply advanced calculus to determine how best to use their small bodies to occupy as much bed space as possible.
My son is particularly ingenious, twisting himself into ever more complex angles. Already crammed into a small portion of bed, I spend nights with him being kicked and prodded as he seeks to become a human tesseract.
Fortunately I have developed a solution. If Goofboy wants to play territory all night - bring it on. My counter-strategy can be summarized in two words: pillow fort.
I sleep in peace, protected by high soft walls. It does, however, provide ready ammunition for the morning assault.