I couldn't decide between the two so I bought both.
What made you choose to purchase both?
I heard one of them is more relaxing than the other one
It is ok to sometimes buy both options when you cant decide. However, if you make a habit of doing something like this you may find that you have a lot less money before you know it.
Who cares, I have two pillows now.
It might be okay this time since it's just pillows, but it could get more expensive in the future if you can't decide on a more costly item. Imagine if you couldn't decide between two cars!