What is the test for an Eighth Amendment claim challenging conditions of confinement in a maximum security prison?

An Eighth Amendment claim challenging conditions of confinement must satisfy both objective and subjective criteria. Wilson v. Seiter, 501 U.S. 294, 298 (1991). First, the deprivation must be sufficiently serious to implicate the Constitution. Id. The conditions of a prisoner's confinement amount to cruel and unusual punishment only if he has been deprived of the "minimal civilized measure of life's necessities." Rhodes, 452 U.S. at 347. Second, prison officials are liable for the deprivation only if they acted with deliberate indifference to a substantial risk of serious harm. Farmer, 511 U.S. at 828. The official must know of and disregard an excessive risk to inmate health or safety; she must have been aware of facts from which the inference could be drawn that a substantial risk of serious harm existed, and must actually have drawn the inference. Id. at 837.