When you're stuffed up at night, sleep is impossible.  Allergy pills help with some of it, but never enough, and if you are taking them at bedtime, it's hours before any relief comes.  With this spray, relief is instant.  One spray in each nostril, wait a minute, then blow your nose and completely open passageways. 

Both my 14 year old son and I have terrible sinus and allergy problems, especially in the winter.  Afrin spray is the only way we make it through the night.