Ps l love my cat but....,,,,

I love my cats! Ask anyone who knows me my cats are my babies.
However, one of mine is driving me spare. She sleeps on my bed and most of night sleeps ok.
Then on the same time every morning (which I have to point out is around 4am) she wants to get up.
She tries everything in the book to get my attention, including walking over my head!
So if by chance she's reading this, I love you dearly but PLEASE stop waking me up ..... There's a tin of tuna in it for you!