The source itself acknowledges the instinctive concern: making a bed with wet fabric risks creating conditions for mildew growth. Without the caveats section, the precise threshold between "slightly damp" and problematically wet remains unspecified.
The safety guidelines that would complete this technique — how damp the sheets should be, drying time, fabric types — were promised in the original source but were not available in the material reviewed. Those conditions remain the open question for anyone considering adopting the habit. Whether the claimed benefits on sleep temperature and bedroom humidity hold up under controlled testing is also yet to be established by cited research.
