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

Other days

comfy

Comfy Day
blanket fort

Blanket Fort Day
stress awareness

Stress Awareness Day
youth

Youth Day
polyamory

Polyamory Day
ruby

Ruby Day
brow

Brow Day
ormille

Ormille Day
lash

Lash Day
pampering

Pampering Day