Medela Calma Bottle Features
The Calma bottle comes in just one size - 5 ounces - for about $17. A replacement nipple set is also available for about $15.
My son struggled with nursing for the first month. Bottles became a necessity for us after he figured out how to circumvent the supplemental feeding system. He needed to eat, but I didn't want to do anything else to damage our already precarious breastfeeding relationship. The Calma bottle filled a need for us at that time. The nipple style didn't allow him to have a lazy latch, and he couldn't just lay there and let milk drip into his mouth. He had to work for it, just like when he was nursing.
Calma is by far the most expensive bottle we've tried. At about $17, it's more of a specialty feeding device than a regular bottle. It works in some situations, though, which may make that cost worthwhile for many families.
There are a lot of pieces to this bottle. You have to put several pieces together to form the nipple, and it doesn't just pull through a hole like a standard bottle. Fortunately, it comes with a base cap so you can assemble the whole thing after cleaning, and the bottom will be protected from dust or grime until the next feeding. Once it's disassembled, this bottle was very easy to clean.
If you're breastfeeding and only need to give a bottle occasionally, the Medela Calma bottle might be a good choice for your baby. For added convenience, you can use the Calma nipples on Medela breast pump bottles.