The invention relates to a convertible cushion that may be used as a blanket in an unfolded configuration or used as a cushion or bed in a folded configuration. One use of such a device relates to a fully washable pet bed. When folded, the convertible cushion may be used by a pet as a bed. When unfolded, the convertible cushion may be used as a blanket. Additionally, the device is constructed of material that is fully washable so that it may be washed in a typical household washing machine when in the unfolded position and fully cleaned.For some configurations, the convertible cushion may further be used in a pocketbook mode, a backpack mode, and a sleeping bag mode (by combining two or more convertible cushions).