In part 1 of this study, a comprehensive full-scale fire test pro gram has been conducted on a wide variety of residential and institutional mattress constructions. Innerspring, solid core, futon and jail pad mattresses were included, along with several styles of foundations. In addition several bed ding systems were tested together with a standard set of bedding components to further evaluate the effects and contribution of those items to the combus tion of the mattress/foundation combinations. The foremost objective of this work was to gather reliable test data on a wide range of bedding material com binations. It is anticipated that this information will assist bedding manufac turers in developing state-of-the-art materials and in producing bedding prod ucts with greatly enhanced fire safety.