MABOZOO 80 * 60 Inch RV Underlay Under Mattress Pad, Breathable 3D Air Mesh RV Under Mattress Ventilation Creating Air Flow for Boat, Camper, Bed (Queen)

Someone recommended a mattress underlay for RVs on Reddit and I ended up going with this option. It's working well so far (6+ months) and very light and portable and foldable. However It doesn't have the support of a tatami or wool blanket, which was fine with me as I love sleeping on a firmer shikibuton. This was what I got:https://www.amazon.com.au/dp/B0F9PBNQ2Y?ref=ppx_yo2ov_dt_b_fed_asin_title