Snorgasm [sn.awr.gaz.uhm] - noun
The profound, life-changing sensation new parents have when they finally get some sleep.
As a noun: After dealing with the fussy baby for 10 straight hours, I fell on the bed and immediately had a snorgasm.
As an adjective: The baby took an unexpected nap this afternoon, so I decided to do the same. It was snorgasmic.
As an interesting note, in a study I made up for the purposes of this joke: when given the option, 4 out of 5 new parents will opt for a snorgasm over an orgasm.