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Quantity
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The Foamy for R1S by HEST was designed specifically with the Rivian R1S in mind. Mimicking the curvature of the award-winning EV, this portable memory foam mattress stores perfectly in the frunk and deploys into a dreamy bed in the back of ...
Reviews
4.8
13 ratings
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Shockingly comfortable! I recommend leveling your trunk with some risers. Fit is pretty good in the car, not perfect.
L
LAITH · March 12, 2026
Glamping In Style & Comfort
In combination with the Rivian in camping mode, two of these mattresses in the back made my last trip the most comfortable camping I have ever done. They fit very well in the Frunk, although it gets quite hot in there. So I wouldn't recommend storing them in there.
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George · August 26, 2025
Perfect fit for my R1S CA Dune Edition. The mattress exceeds my expectation for comfort. Its as comfrtable as my home mattress. Love the Rivian Branded touch. Fits well in the frunk so ill awlays have them if i decide to stop and enjoy the views.
