The same thing happens to puppies, of course - but it's a rare occasion that sees a puppy dog's owner in possession of a video camera to record their sleepiness.
Here, a really rather adorable pooch gets so pooped he starts napping standing up, and then gets so sleepy he collapses into a bundle of cute and wakes himself up in the process. In a word: "Naw..."
For more "Naw...", check out this video gallery we've got for you below of cats and dogs getting on like a house on fire - often napping together, in fact.
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