How do you set mac to require PW to wake from sleep? (no breast milk content)

[M>B>]

You might try starting up form your original disk and resetting your password from the menu.

Personally, from my home Mac I skipped over the password field and just went on. My Mac is not password protected, but I don't care as I am the only user on the machine and there is nothing that would benefit others on it! Keeps me humming fast!

Having said that, on my portable laptop I do have a password for obvious reasons.