Edging session?

When is it acceptable to go against a Dominants wishes? I was told to begin edging at midnight tonight, my domme then told me she would let me know when I can stop. It’s been almost two hours and she still hasn’t contacted me to tell me to stop. I’m getting pretty tired, but I don’t want to upset her. So at what point is it acceptable for me to just go to bed and send her a message apologising? I don’t mind edging for long periods at all – I would happily do it all day long with minimal breaks but I have a life that involves me waking at 7am and it’s now almost 2am so I’m not sure if that makes it okay? Could any Dommes on here give me an idea as to what is acceptable in terms of breaking orders/when it is okay to do so? Thanks! female orgasm denial Get your own Orgasm Control toys: For men: http://www.amzn.to/1V6XQvv For women: https://ift.tt/1UWn54n