Dogs sleep a lot due to their natural instinct as descendants of wild canines who needed rest to conserve energy for hunting and survival.

Sleep allows dogs to recharge both physically and mentally, ensuring they stay active and alert when they're awake.

Dogs experience REM (rapid eye movement) sleep, where they dream and process daily experiences, just like humans.

Dogs use bursts of energy while awake, and extensive sleep helps them replenish their energy reserves.

Dogs regulate their body temperature through sleep, especially since they can't sweat like humans.

Sufficient sleep contributes to a dog's emotional well-being, reducing stress and promoting a stable mood.