Hi-
I went through this when nick was 12 mos. he got used to me rocking him for 2 mins after NW and then would go right back down. But, he started waking 4-6 times wanting to be rocked...
It took 2 nights, I'd go in, hug him w/out picking him up, and give him lovey, walk out, wait 2 mins for him to settle, go back in... if he was crying hysterically, I'd stay with him, hugging him over the edge of crib, whilst reassuring him verbally. HE WAS MAD the first night. Keep saying "up" and pointing to the chair, cried for 1 hour the first night. Second night, he got it.
Now he sleeps through- first time in months....