First thing is - within walking distance to what place in Warsaw? Warsaw is about thirty miles long along the river and about twenty - across. So 2 or 3 miles still keep you inside Warsaw downtown - you have to travel much more than that, to leave the city.
About fifty miles to north-east, there is the Zegrze artificial lake with various types of hotels on its beaches. Look up such place names as Nieporęt, Zegrze, Pomiechówek, Rynia. Or Serock and Pułtusk on the river feeding the lake. This is the nicest place around Warsaw.

There are hotels. Krakow and Warsaw are the most mving cities in Poland! HOTEL HOTEL HOTELS!

thousands of places and a whole range of prices. Quality ranges from the extremely luxurious to worker’s hostels.

If you need easy access to the city then look along the main railway lines and access roads- Warsaw is rather big so I would suggest rail, bus or tramway instead of walking

try a web search. this link
is in Polish but it provides prices (1 US$ = 3 PLN, approx) and the city name Warszawa is Warsaw. All the hotels have english speaking personnel and web sites

this
is in English and should be easy enough to navigate.

If price is not your concern, just Google Marriott ;-)))