Tsuyado are provided as a charity by temples, and should not just be seen as a free alternative to paid lodging. Please leave them as a last resort for pilgrims in trouble; you should not plan your itinerary around tsuyado stays. Read more about them here.
Beautiful Tsuyado in the bell tower, sleeping literally under the bell! It has enough space for two people. The windows can be closed to regulate the wind flow. The toilets of the temple are basically next to it. There is light, but no charging outlets in the Tsuyado. You might find something in the toilets.