This is a familiar feeling to me as a sailor; when cruising, every place is new, and at anchor I&#x27;m never fully asleep the way I am on land. Any little sound, or the cessation of any regular sound I&#x27;ve gotten used to, and I&#x27;m up like a shot with the flashlight trying to identify it. Even the relatively slow rotation of the boat around the anchor as the wind shifts is enough to bring me awake thinking &quot;what changed?&quot;