In this paper, we propose a power-saving protocol, the fuzzified quorum-based wakeup scheduling method. In the 802.11 wireless sensor network, the hosts in the power saving mode must have to wake-up every beacon interval to check if they have to remain awake in the remaining of the beacon interval. In our study, the authors proposed the adaptive grid-quorum method to involve the power saving idea in the event-driven wireless sensor network. With the fuzzified balancing algorithm proposed, the system not only can solve the mentioned network problem, but also can remain the efficiency enhancement and energy-saving issues at the same time.