I have noticed a few times when i am driving i experience a momentary loss of power. Any idea what it is?

Last week i was driving around 80mph with cruise on and felt a loss of power. Just tonight i was driv8ng home at around 35mph and felt the same thing again...

 

I say if your car have any warranty left I suggest you goto the dealership and good luck reproducing that action.
Besides that I say just check typical tube up things... "Air filter, batt, ect.."