All 3 of mine sleep with me and have different ways of waking me up:
Hoku is the only one large enough to jump off and on the bed and knows that will wake me up immediately as I don't want her off the bed until I get out.
Kalani walks up my body and gives me a kiss on the nose. If that doesn't work he sits on my tummy and whines.
Pi'i sleeps curled up by my neck so he puts his paw on my face and gives little licks till I start laughing.
I think they must take a vote on who's going to wake Mommy up each morning cause they never do it all together