Domain Mapping in SSL

Good-morning!

OK, … we are using a Wildcard SSL Certificate on this site and that means that all the sub-domains will uses SSL.

When we want to map a domain we are going to use this:

http://sub-domain.oursite. **/

What is the right thing to do here? Map it as it is or ….? Shouldn’t there be an option to use https?

Your guidance will be much appreciated.

Thank You!