My girls seem to require very little sleep. In fact looking at a recent infographic on the Animal Kingdom they are a lot like dolphin Infants who need no sleep. I on the other hand love sleep and given the chance would spend as long as possible asleep.
Our dogs are very different too. J likes to sleep, he loves curling up into a ball and having a nap. In particular under things, especially blankets. Spotty dog on the other hand likes to have lots of little naps, as if she is recharging her batteries. She bounds about everywhere then has a short nap before bounding around again.
I do wonder what Thing 3 will be like. Will they take after me and enjoy their sleep or will they take after their Dad who needs very little sleep? How much sleep do you need and which animal sleep pattern matches yours?