I have the biggest presto pressure canner.

It is hot outside and we don't run the AC much, so I want to can at night. Thing is, once I go through all the steps to heat up (on my stupid glass top range, very slow) vent steam, pressurize the canner, let it go the allotted time, and then it is time to remove it from the burner and depressurize, by that time I want to go to bed!

Is it OK if I just pull the canner off the burner when it is "done", and let it cool down on it's own overnight and just take the jars out in the morning? Or do I really need to open it once it is depressureized and cooled? I am so scared to deviate from the instructions!