The two crossword solutions for the term TYPE OF CELL are PADDED and SLEEPER. Padded cells are a type of cell used in psychiatric hospitals and prisons to contain people who are deemed to be a danger to themselves or others. They are designed to prevent the occupant from harming themselves or others, and are usually lined with foam padding on the walls and floor. SLEEPER cells are a type of cell used by undercover agents or spies. They are designed to allow the agent to remain undetected while gathering information or carrying out operations.