Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Brighton (85% of total searches to East Sussex). The next most popular destinations are Lewes (7%) and Hastings (4%). Searches for hotels in Eastbourne (4%) are also popular.
KAYAK users have found double rooms in East Sussex for as cheap as $41 (Brighton) in the last 3 days. The average price is $377.