'Love & Basketball' Star Sanaa Lathan -- Stalker Was Sleeping In My Home!!

"Love & Basketball" star Sanaa Lathan is being stalked by a man claiming to be her husband ... who was discovered sleeping in her home ... law enforcement sources tell TMZ.

Lathan just got a restraining order against 28-year-old Shawn Caples, who was discovered dead asleep in her laundry room last Friday by contractors.

The man -- who insisted he was Lathan's hubby -- was shooed away ... but she says he reappeared later that day. Lathan screamed at him to "get the f*** out of here" and then called the cops when he refused to leave.

In her docs, Lathan says Caples showed up at her doorstep 3 days later ... and she hid in fear.