In wireless sensor networks, the energy spent for communication can be minimized by decreasing the distance among the sensors and sinks and by deploying multiple sinks on proper locations. However, collision may occur at any time in the network owing to the lack of data packet. In order to overcome this issue, in this paper, the authors propose a power efficient scheduling technique for multiple sinks in wireless sensor networks. Initially, a sleep or wake up cycle scheduling is assigned for every node in each cluster. This is realized by scheduling the synchronization interval and the transmission interval of the sink. The sink while gathering its own sensing data and the data collected from the members, necessitates higher energy consumption and also power dissipation occurs across nodes.