Nick and Vanessa Lachey's Mansion Sells in 37 Days

Nick and Vanessa Lachey got EXACTLY what they asked for when they listed their Encino crib ... dumping it for $3.995 million!

The couple listed the 6 bedroom, 8 bathroom mansion back in April ... and their asking price was obviously right, since it took just over a month to sell.

The lucky buyer now has a 8,134 square feet home. It features cathedral ceilings and a baller pool ... just in time for the San Fernando Valley's scorching summer.