How about a Rhodesian ridgeback? As long as they get an hour/hour and a half exercise a day ( when fully grown) they mostly sleep the rest of the time. Sorry for the cut and paste
The Rhodesian Ridgeback actually developed in South Africa, not Zimbabwe. Beginning in the 16th century, Mastiffs, Bloodhounds and Terriers emigrated with European settlers and mated with half-wild native hunting dogs in their new homes. Difficult conditions selected only the strongest, bravest and most heat-tolerant dogs for survival. In small packs, Ridgebacks can successfully hunt lions. A strip of hair across the back grows in the opposite direction of the golden-red coat and forms the distinct ridge. As pets today, the dogs require space and exercise, but display quiet dispositions and a fondness for children.
Here’s our boy, Rogue: