Oops, it doesn't look like 'aaron hernandez day' is a national day..

Other days

bubble bath

Bubble Bath Day
slime

Slime Day
buddy

Buddy Day
comfy

Comfy Day
nae nae

Nae Nae Day
singles

Singles Day
cursing

Cursing Day
blanket fort

Blanket Fort Day
boy friend

Boy Friend Day
first love

First Love Day