[Xanthro]

A major factor in determining success is where Sean normally dives, and how often he dives.

I've spent hours under the water in warm locales where the locals where freezing, because I'm used to diving very cold water.

Acclimation makes a huge difference in how your body will withstand the cooling affect of the water.

If Sean dives 50 times a year, and off California or more Northern Western States, or the North East States, this bet isn't that hard then.

I've fallen asleep at deco stops, so rest isn't that much of an issue. It's whether his body can take the cold.