Starting with Bootstrap v3.3.0, you can vertically align both media-object, and media-bodyby adding a CSS class media-middle.
For instance:
<div class="media">
<div class="media-left media-middle">
<a href="#">
<img class="media-object" src="..." alt="...">
</a>
</div>
<div class="media-body media-middle">
<h4 class="media-heading">Media heading</h4>
...
</div>
</div>
See: http://getbootstrap.com/components/#media
, , media-body. , media-middle vertical-align: middle; , media-body display: table-cell ( media-left media-right).