As a professional bed tester, your duties involve testing mattresses and bedding for a manufacturing company during the development phase of a new product. Your responsibilities include laying and sleeping on a prototype mattress and then creating a report in which you assess comfort and other factors. You can also test blankets, pillows, and other sleep products. Some testers evaluate the quality of beds and other elements that affect sleep in hotel rooms. In some tests, you must use the products under specific conditions to assess its effectiveness.