As mentioned in the subject.

http://www.mnilifestyle.co.za/products/neurovance/
http://www.mnilifestyle.co.za/products/peak/

I'm having some sleeping issues (again) and when I wake up, I'm tired as hell and my ability to concentrate sucks. So I'm looking at one (or both) of these two so far as to a possible solution. I don't mind the sleeping irregularities as long as I'm not brain-dead the next day.