A moisture-absorbing pad helps manage the dampness that collects beneath a shikibuton, but it does not replace lifting and drying the bedding each morning. Choose the underlay for the surface you have: a breathable moisture pad on a hard floor, an insulating mat as well on cold tile or concrete, and on clean, dry tatami or a ventilated slatted base, a pad is optional.
Useful underlays
- Moisture-absorbing pad: a thin sheet made to draw damp away from the underside. Dry it in the sun or air regularly; some have an indicator that changes colour when it needs drying.
- Rug or insulating mat: on tile, stone or concrete, it keeps the cold of the floor away and protects the cover.
- Slatted base or low platform: lifts the shikibuton off the floor so air can circulate beneath it.
What to avoid
Do not lay the shikibuton on plastic sheeting or other non-breathable materials, which trap moisture. A thick, soft topper underneath also works against it: the shikibuton is designed to rest on a firm surface, and a soft layer below reduces its support.
Whatever is underneath
Fold or stand the shikibuton up each morning and air it regularly. The same guidance applies to HIMARI 日葵 and SORA 宙.