Sources tells us Stormi Webster's nursery is stocked with thousands of dollars in organic, eco-friendly and sustainable products. We're told any items with paint are chemical-free, and anything wooden came from sustainable suppliers.

Among the environmentally-conscious products in Stormi's digs are a $3,500 hand-finished Bancroft changing table and a $400 organic premium crib mattress ... both from Petit Tresor in WeHo.

Our sources say Kylie and Travis Scott also bought a slew of handmade, wooden teether bears -- from the forests of South Chile -- coated in a non-toxic bee's wax and cold-pressed flaxseed oil.

We're told any item Stormi comes into contact with is going to be safe and good for the baby ... and good for the environment, too.