I have a huge sweet potato I dug up over a year ago. It has given me suckers all summer long. It is still firm. I guess I need to cook it up and see what it tastes like after a year. It survived being in a hot and humid place all summer long.

Don't worry, they will be fine at cool room temps -- just don't refrigerate them. Choose a couple of the largest ones that have no apparent cuts or bruises, and set those aside to work with in the spring. Sweet potatoes are slow to break dormancy, easy and fun to grow.

You have to store sweet potatoes at temperature of
55 deg. F. or higher. I store my eating potatoes and seed potatoes in a spare bed room with door closed and no heat.
The temp. stays about 60 deg. F. all winter. If the temp. get up in the 70 plus range the seed potatoes will sprout prematurely.