If you are looking for ottoman chairs for your bedroom, you should consider getting one that fits the size of your room. Oversized chairs and ottomans are not a good fit because the overall size will be too bulky and take a lot more space which will make your room look too crowded.
The best recommendation for what will suit best are accent chairs, glider chairs, and medium-sized reading / relaxation chairs.
For example, accent chairs are perfect because they are not usually bulky or too big. You can put it in front of a desk or in the corner of the room where you can relax.
Glider chairs are also great, because it goes so well in a bedroom. While these also can work well in out in the porch or in the living room, if you need some privacy or just time for yourself, a glider chair in your bedroom will give you the peace of mind you need.
You could get one of these medium-sized Christopher Knight ottomans, but make sure your bedroom is spacious enough to handle it. The perfect placement for this is in the corner of the room. You can comfortably read a book or take a nap on this if you want.