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

Other days

boba

Boba Day
one

One Day
unicorn

Unicorn Day
blanket fort

Blanket Fort Day
promposal

Promposal Day
raise awerness of zeus

Raise Awerness Of Zeus Day
nail polish

Nail Polish Day
eat what you want

Eat What You Want Day
stud

Stud Day
kiss a ginger

Kiss A Ginger Day