Swaggy P: Shopping In $1,800 Pajamas

Iggy might be gone, but Swaggy P is still keepin' it fancy ... furniture shopping in L.A. while dressed up in $2,000 pajamas!

Nick Young posted a pic when he ran into The Game at a home goods store -- but we noticed the threads were super expensive.

-- Gucci slip-ons ... $840.

-- Versace bathrobe ... $550

-- Gosha Rubchinskiy sweatpants ... $175

-- Rhude "Sugarland" t-shirt ... $165

Grand total ... $1,730 (plus tax) ... so, we're talkin' a little more than $1,800.

FYI, Young signed a 4-year $21.5 million contract back in 2014.