A new puppy should get all the sleep it wants. However, often a little nudging or noise will awaken them and they'll play for a few minutes and then go back to sleep.
I never worried about interrupting my puppy's sleep occasionally --- because if they were with their mom and litter mates - they are being awakened constantly - with licking - other puppies climbing over them, etc.
But - puppies like newborn babies need a lot of sleep.
Carol Jean |