A pet utility device for reversibly converting from a pet bed to a pet carrier or pet seat, the device comprising a shell portion, wherein the shell portion includes lateral portions, a rear portion, a bottom portion, shell gusset portions, and sealable flap portion; a pad portion, for detachable attachment to a portion of the shell portion wherein the pad portion includes pad gusset portions; sealing device located on the periphery of the lateral portions, the sealable flap portion, and the bottom portion of the shell portion; wherein when the sealing device is utilized during the reversible conversion from a pet bed to a pet carrier or pet seat, the bottom portion engages the lateral portions such that the shell gusset portions and pad gusset portions retract and fold-up upon themselves thereby sealing the bottom portion of the lateral portions and the sealable flap portion to the lateral portions.