A linkable sinker which is particularly suitable for trolling can be used alone or linked end-to-end with similar sinkers. The system improves upon the structural shape of the side rails used in association with the articulating bed frames and provides an arrangement of side rail pads that are positioned between the side rails and the existing mattress platform. In some instances, the probe device also includes a temperature control mechanism that is configured to raise and lower a temperature of the probe head.