This changing mat is great for when you are out of the house. When you change your baby in a public bathroom, you can be sure he will be in contact only with something you clean (and is so easy to clean- just wipe with some alcohol on a cotton ball and you are done), and which provides a little cushion to make it softer.
The babybjorn travel cot is great because although it is so light and easy to carry, it does not feel light. It has a nice, solid feel to it, and is also nice and airy. My son takes his day naps there and seems very comfortable in it.