Maruschke - Does she wake at all? If yes then aim to try a suck feed every feed she's awake. If she's not awake at all, then I would try to wake for a suck feed every feed. The other thing to do is have lots of skin to skin and let her nuzzle. I know you are trying suck feeds with the bottle, but you never know, if booby is in her face she might want a little lick.. Hopefully she may even attach by herself when she's ready..
I just saw your FB. Thanks for reaching out to me when I know you definitely don't have it easy at the moment . The night nurses don't bother trying to wake her for a suck feed and it ticks me off... they just tube her, and sometimes her chart says "not disturbed" so they aren't even checking her nappies. Pardon my emotional outburst. But it's disappointing.