This is a lintel made from sandstone. It originated from Tuol Angkor, Kompong Speu Province. Experts have determined that it belongs to the Prey Khmeng style, of the late 7th century, in the Pre-Angkorian era, during the reign of the King Jayavaraman I, from the year 657 to 681 CE.
The sculpture shows Vishnu sleeping on an eight-headed Naga in an ocean. A lotus grows from his navel. Seated on the lotus is Brahma. The ocean is represented by waves and water, and is home to a multitude of fish. The body of sleeping Vishnu is flanked by two Makara, one on the left and the other is on his right.
Vishnu has four arms. His lower right arm is place parallel to his body. The upper right arm holds a lotus flower. The upper left arm probs-up his head that has a cylindrical crown on top and the lower left arm touches the heads of the Naga.