George was a pirate, but he wasn’t a very good pirate.
He had a hard time sleeping.
His doctor checked him for sleep apnea, but George kept himself fit and lean.
He was fine during the sleep study, too.
So, the doctor recommended a relaxing herbal tea, and that George get an ambient noise generator.
The herbal tea was soothing, and the noise generator produced the sound of the ocean waves.
Which is silly, when you think of it.
George, laying there in his bunk, right under a porthole, and using a noise generator instead of just opening the porthole.