i need SLEEP!!!

its impossible to get even ONE full hour's sleep with a two year old sleeping with you... no kidding!
every time she so much as stirs in her sleep, i'm awake... all senses alert.... in case she needs milk, needs a hug, needs attention >.*
and i'm not even her MOM!!!
is that the way its suppose to be??? do all moms, babysitters, anyone who takes care of 'lil kids go thru such a period where you absolutely do not get the sleep you need??? OMG!!!!!!!!!!!!!!!!!!!! i hate to think what will happen when i have MY OWN KIDS!!!!!!!!!!!!!!
i so so SO need zzzzzzzzzzzz =.=