This is strictly a request for information. The Government has no obligation for award. If interested, please provide a capabilities statement. The National Aeronautics and Space Administration (NASA) Human Research Program (HRP) is requesting information on head-down tilt bedrest research capabilities in the United States that could support human spaceflight related research studies as well as other multi-discipline research objectives requiring periods of up to 90 consecutive days of bedrest (30-60 days more typical). The Human Research Program (HRP) investigates and mitigates the highest risks to astronaut health and performance in exploration missions. The goal of the HRP is to provide human health and performance countermeasures, knowledge, technologies, and tools to enable safe, reliable, and productive human space exploration. The scope of these goals includes both the successful completion of exploration missions and the preservation of astronaut health over the life of the astronaut. Due to the cost and complexity of spaceflight opportunities, deconditioning analogs such as head-down tilt bedrest are often utilized to evaluate potential technologies and countermeasures prior to spaceflight implementation.