Can I place a waterproof cloth under the baby to keep the DockATot clean or use the DockATot on waterproof sheet?
We strongly advise against placing anything under the baby due to concerns that added blankets or fabrics will cause the surface to be too plush. Blankets (and pillows) present a suffocation risk if the baby should roll over onto baby's tummy in the dock.
Waterproof materials can also harbor heat, which can potentially lead to overheating, and can trap moisture, which can potentially lead to mildew.
To reduce the risk of Sudden Infant Death Syndrome or suffocation, the American Academy of Pediatrics advises that all babies be placed on their backs to sleep for the first year of life, without added blankets or pillows.