One of our Bridge babies used to jiggle the curtains to get our attention. He'd glance at the bed, and see if he was getting any reaction, and if he didn't he'd jiggle them harder.
On a more serious note, you could try putting a scratching pad on the wardrobe door, or on the floor in front of it, but I suspect it's behaviour designed to get your attention and to get you to wake up.
I know it can be hard, but personally I'd respond, and make a fuss of her. But I don't have the ability to resist the force of a cat in full flow, so maybe I'm not the best person to advise.
If it's any consolation, my day starts at 5 a.m. and I frequently arrive at work
My philosophy goes that I'd love to still have Tinks jiggling the curtains, and I miss his direct interventions hugely.
Barley however often likes to leap on the bed in the middle of the night and stomp about until she gets a reaction (which she does instantly
). Alternatively she'll bring us mice or birds, and her favourite trick is to let them go in the bedroom. That tends to get our attention.