Now Remember, You Can Never Lay Flat Again !

A head covering skillfully turned into a ...head covering👍🏆

Yes and no ... How long would it last on a windy day or in the rain ?

Depending on the amount of hairspray or gel used the shape could last a little while. In the 50's and 60's there were styles, bouffants and such that were worn for a very long time.

That's true
Ancient Japanese pillows designed to protect elaborate hairstyles and wigs are called takamakura (meaning "tall pillow") or hakomakura ("box pillow"). Used prominently by geisha, maiko (apprentices), and samurai, these elevated neck rests ensured that expensive, waxed updos remained flawlessly intact for up to a week.

Ai slop where is my downvote NOW

There