“What do you do at night? Do you stop to go
to sleep? What happens while you are sleeping?”
Cycles that vary from person to person, but typically range between 20 and 45 minutes
When you sleep, you are not trimming the boat for speed, you are not optimizing your routing but most importantly you are not watching the horizon for any traffic that might represent a collision danger. Freighters, fishing boats, pleasure craft, other boats in the race.
Boat closure rates of 10 to 15 knots. Depending on speeds, you have about a 20 to 40 minute window where if you have checked the visual horizon, the AIS and your radar you have the ability to sleep with lower risk of collision.
What happens during the cycle?
Goal is to fall asleep as your body enters into the downwards leg of the cycle, and wake in the upsweep.
You wake up, check the horizon for traffic. Check the wind conditions, your course, adjust as necessary, take a look at the boat for any physical issues, check the horizon one more time, then go back to sleep.
This can happen night or day, and taking if done right you end up with 6 or so hours of sleep in any 24 hours window, just broken up into 20 or 30 minute naps. Just as rested as if you were sleeping at home on shore, and ready to commit to the touch physical jobs when necessary.