J.,
My daughter started doing the same thing around 10 months so I decided I was going to have her completely weaned and on a sippy cup by a year and by 11 months she was weaned and using a sippy cup. I didn't want to introduce a bottle since she was also breastfeed and I didn't want to have to wean her from the bottle also. I did have to have some help from my husband because if she was sitting on my lap she wanted to nurse. So he would sit with her at night before bed and give her a sippy cup that had a mixture of whole milk, formula and sometimes breastmilk, then I would breastfeed her after that. I tried many different combinations until she started taking it. Then I kept increasing the whole milk until it was all whole milk. I did gradually cut back on the breastfeeding, first cutting out the afternoon feedings and only offering in the morning and at night, then I cut out the morning one, I would get her up, change her diaper and go right into the kitchen and put her in her chair with breakfast and a sippy cup. At first I was warming up the milk and I gradually cut back on warming it so it was less and less warm each time until I finally could give her cold milk. I actaully only took about 3-4 weeks to get her to drink cold milk from a sippy cup. Oh, and sage will reduce your milk supply, she lost interest as my milk supply started decreasing too, I was cooking with sage as much as I could. I hope my story helps! Good luck! - E.