More Staking Questions

Ok, so I read on official forum a response that seemed to imply staking could happen anytime between 8 hours and 365 days. So I get that it is a random event somewhere in that time-frame.

Now my question relates to how long do I need to keep my wallet open. I realize no staking will occur if I do not have the wallet open, but say I close it and don't open it for a month, or a year. Will it then have the same chance of staking? So hypothetically, say I don't open my wallet for 365 days, according to my interpretation of that the post I would be guaranteed it to have it stake at that point?

I guess I am just trying to understand if there are any negatives to not keeping the wallet open 24/7.

Thanks