Oops, it doesn't look like 'riley matthews appreciation day' is a national day..

Other days

boyfriend

Boyfriend Day
blanket fort

Blanket Fort Day
cuddle up

Cuddle Up Day
pumpkin

Pumpkin Day
slime

Slime Day
reading

Reading Day
azonto is acceptable

Azonto Is Acceptable Day
buddy

Buddy Day
self appreciation

Self Appreciation Day
ruby

Ruby Day