Cotton Part 2

Okay, I've looked up cotton cultivation, and I think it just might be the thing that's needed to save those poor, misfortunate sheep. So, how much seed to you think I should purchase? Amazon has 20 for a fairly reasonable price, but would that be enough to keep the polar bears occupied? Perhaps I need to call that cat who works at the seed store for some odd reason, to see what amounts and prices they have.