Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular region to stay in Poland is Mazowieckie. Malopolskie and Pomorskie are also very popular.
KAYAK users have found double rooms in Poland for as cheap as $11 (Gdansk) in the last 3 days. The average price is $142.
In the last 72 hours, users have found Poland hotels for tonight for as low as $20 (Zielona Góra). Users have also found 3-star hotels from $28 (Gdansk) and 4-star+ hotels from $27 (Bialowieza).