The "CAN" 

   worked for us!  I just had to do that once, and Gizzy settled down and went back to sleep.  I try not to overuse "the CAN" because it will lose it's effectiveness.  Now, all I have to do is say "No" in a firm voice if he happens to wake up and whine and he settles down. 
I find it easier to correct if I catch him before he starts barking.  If I can nip it at the whining stage, that works.   
But it will be tough for awhile.  I feel your pain, and lack of sleep! 
PS the "CAN" 

  is just an empty soda can with a few marbles in it.  I shake it and say "No" very firmly. 
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 The fullness of our heart is expressed in our eyes, in our touch, in what we write, in what we say, in the way we walk, the way we receive, the way we need. -Mother Teresa   (
 RIP Gizmo 3/9/07-8/18/12)
