Oooh, I love having extra sheets, lots of fabric to work with! When I read satin leopard print, I thought of a nightie. You could make a really cute babydoll that would be really comfy. I've been wanting to make one using this tute http://sewmamasew.com/blog2/?p=5043
You could also make a really nice robe, possibly even matching with all the fabric you have to work with!