A long, hot bubble bath is a delectable pleasure—one our Playmates have indulged in time and again over the years. Perhaps they were in need of some relaxation, or perhaps it’s the sudsy allure of what’s under the bubbles that prompted so many Playboy shoots in the tub. Either way, our Playmates have hopped in the bubbles many times in the magazine’s history, and we’re sure glad they did.

January 8 is National Bubble Bath Day, aka the perfect time to revisit some of our favorite foamy photos from the archives. Solo or with a friend, on the phone or having a snack, these shots are sure to make your temperature rise. So, draw yourself a bath, make sure it’s nice and sudsy, and dive into the archives to check out some of our favorite bubble baths from Playboy‘s past.

A bath is often known as a source of me-time, but Anna Nicole Smith proved it can also serve as we-time.

Judi Monterey, Miss January 1963, honored the annual holiday way back when.

Multi-tasking is a special skill.

Clean from head to toe.

The bath is hot, the snack is cold.

We took some creative license with this interpretation of bubble “bath.”

Suds from above.

We’re hanging up now, bye!