Advil nighttime?

I think I read something on here earlier about Advil Nighttime being on sale *somewhere* for $3.99. I just found $4 off coupons but now I can't find the store that had the sale. Anyone? :shrug:

process of elimination if it helps walmart is reg price at 4.77, not at shoppers (checked the flyer when it came out)

Maybe this is what I'm thinking. I might have read that it is an unadvertised special?

Thanks Midnightly!