Reese Witherspoon and Jake Gyllenhaal's Getaway!

OK! magazine is reporting that Reese Witherspoon and Jake Gyllenhaal had a weekend getaway... they spent Sunday night together at the romantic Carneros Inn in California's scenic Napa Valley.

"They checked in early Sunday morning," a source reveals to OK!, adding that once the couple got settled, they didn't come back up for air. "Reese and Jake did order an in-room massage but cancelled it. They also weren't seen anywhere on the grounds of the 27-acre resort, nestled in the hills of Northern California's wine country.

While at the Carneros, Reese & Jake rented one of the resort's private "homes," which feature multiple bedrooms and over 1,000 square-feet of personal outdoor space. These homes can rent for anywhere from $1,600 to $2,400 per night.