I highly recommend this place for your stay in Polonnaruwa.
You can enjoy a delicious Sri Lankan breakfast on the terrace nestled in a quiet forest. A short walk away is a lake where you can stroll along the shore or watch the sunset.
The room was very comfortable, equipped with everything you need for your stay, including air conditioning and a hot water shower.
We only stayed one night due to our itinerary, but I recommend staying longer if you have the time.