Grey seal sleeping on the beach, Orkney Islands, Scotland  

Grey seal sleeping on the beach, Orkney Islands, Scotland

This sleeping grey seal, spotted along Scotland"s coast, is here to remind us that rest matters. These marine mammals are strategic sleepers. Instead of one long snooze, they nap in short bursts that suit their surroundings. In the water, they sleep lightly so they can surface to breathe. On quiet beaches and rocky islands, they stretch out for deeper rest.

© Andrew Mason/Minden Pictures

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