When someone that has never owned a dog or a cat gets asked this question they always say no or no way! So...
What is the correct answer to this question?
Ask someone who has owned a dog or a cat and they will smile a big smile and say yes, or definitely yes.
I know from personal experience that they do dream, for their legs twitch, and they yowl or growl while they sleep. Several of my dogs even bark quietly as they lay on their sides snoring and passing gas.
They do just about everything people do except read the newspaper on the toilet or drive cars...
Give your pet a hug and smile at them when they ask for attention, you know they deserve it!
Have a great day!