Kim Kardashian 4th Baby Shower Sooo CHILL ... CBD for Everyone!!!

Even on baby no. 4, Kim Kardashian's still finding ways to make baby showers unique -- and SUPER zen -- by loading up her GFs on CBD everything, baby!!!

Kim admitted during Saturday's event ... she was "freaking out" because she and Kanye West are expecting their newest baby's arrival -- by surrogate -- within a couple weeks. So, since she needed to chill out, Kim thought, "What better way to celebrate than to have a little CBD?"

As they say ... the crowd went wild. Guests -- including Paris Hilton -- got to concoct their own CBD-infused body oils and bath salts ... before chilling out with a sound bath.

Kim also gave all her peeps in attendance, blue Yeezy slides that even Paris rocked ... and there were blue accent decorations -- all celebrating baby #4, who, as we reported, is a boy.

She also might have dropped a BIG hint on the kid's name when she zoomed in on a name on the wall, Robert Harut (Armenian) means he has risen. Robert would also be a homage to her late dad.

North and her cousin, Penelope Disick were also there for the shower ... we're assuming they passed on the CBD and went with a juice box.

When baby boy West arrives ... Kim and Kanye will have a strong poker hand ... 2 pairs -- 2 girls, North and Chicago, and 2 boys, Saint and ... TBA Kardashian-West.

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