HHS-OASH-2026-0397-5764 https://www.regulations.gov/comment/HHS-OASH-2026-0397-5764 I ask HHS to study shielding against extremely-low-frequency fields that reach a sleeper from below, including fields that may be targeted, and to publish which materials and placements actually reduce that exposure. In the nights beginning September 20, 2026, I woke with a feeling of hopelessness and despair that was present before the thoughts and dreams that agreed with it. A copper–nickel mesh cloth left the feeling unchanged when I used it as a cover. The same cloth was associated with relief when it lay under my back, between my spine and the bed. The trial was subjective and unblinded. I have no magnetic-field measurement of those nights. People I know in Florida described a similar feeling on waking over roughly the same week. I cannot tie their reports to my room. The published work I consulted, Adey and the Loos patents, does not report hopelessness. It does report that weak fields in bands overlapping sleep-related rhythms can reach physiological systems at levels that do not heat tissue. A thin conductive cloth is not a shield against a slowly varying magnetic field. Families have no tested guidance for a source under the bed (ground / terrestrial based.) That is the gap.