Will be camping and using
"Will be camping and using in in late August in big sur"









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 the R1S. Expand your comfort by linking a second mattress to create a double bed. *Excluded from promotions. Note: This is a single mattress. To cover the full sleeping area of the Rivian R1S, you will need to order two.

"I never dreamed that a camping mattress would be the most comfortable mattress I've ever slept on." - Treeline Review
Designed specifically for use in a Rivian R1S, the Foamy for R1S by HEST rolls in style. Transporting perfectly in the frunk, it deploys into a perfectly shaped memory foam bed in the back of the Rivian R1S complete with curved cut outs that fit seamlessly around the wheel wells. Utilizing two layers of temperature resilient memory foam, the Foamy for R1S is a single mattress, but link two together to maximize the space and create a comfortable double bed for two. Each Foamy for R1S features an oversized pocket on the side to store your phone, Rivian key card, and other small stashables.
We offer the Rivian Foamy for R1S in 1 size perfectly shaped for the back of the Rivian R1S complete with curved cut outs that fit seamlessly around the wheel wells. Connect two together to fill the whole sleeping space in the back of the R1S.

Temperature Resilient Memory Foam

Cell Phone & Keys Stash Pocket
R1S Compatible

Easy Carry Handle

Waterproof Lower Construction

Linking Clips For Expanding Sleeping Area

Integrated Compression Strap Harness

Compact Roll Design
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ENHANCED MEMORY FOAM: Two layers of high performance polyfoams found in leading home mattresses. Top layer is a plush body contouring & temperature resilient foam. Bottom layer provides support & pressure point relief. HEST foam is CertiPUR-US foam. R-VALUE 8.8: At 8.8, this is one of the highest R-Values portable camping mattresses on the market. RIVIAN R1S COMPATIBLE: The Foamy for R1S by HEST was designed specifically to fit in the back of the Rivian R1s by itself or linked with a second to make a double bed. Curved cut outs around the vehicle's wheel wells create a perfect fit with the back seat down. PHONE POCKET: A conveniently located extra large pocket on the side of the mattress above the wheel well cut out is the perfect location for your phone and other small stashables. LINKING CLIPS: The handy connector clips on the sides of the Foamy R1S make it easy to expand your sleeping space when you're rolling with a plus one. REMOVABLE & WASHABLE COVER: The cover is easy to remove and machine wash. |
COMPACT ROLL DESIGN: The Foamy R1S rolls tight for easy transport and storage. INTEGRATED COMPRESSION HARNESS: The Foamy R1S durable clips & straps make it easy to pack small. EASY CARRY HANDLE: Grab & go, a durable handle makes transport a breeze OUTDOOR READY MATERIALS: Waterproof & dirt resistant materials were selected with the great outdoors in mind. TEMPERATURE RESILIENT: Our temperature resilient memory foam was sourced to perform in cold temperatures. RUGGED CONSTRUCTION: Waterproof lower fabric encases the bottom of the mattress, keeping you and the memory foam dry even when it starts to get soggy out. |
Overall rating: 4.625 / 5 from 8 reviews.
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"Will be camping and using in in late August in big sur"
"Well constructed and fits the R1S perfectly. A nice upgrade from using a couple camping inflatable pads. Definitely recommend these for car camping. Got the pillows as well and cooling sheets / pillow covers. Perfect! I would prefer a smaller cut out for the arm rest which is larger than the space needed to accommodate stash pockets which are not needed. More mattress surface would be better than some extra pockets that are not needed."
"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."
"Amazing mattress for Rivian . Almost made me want to replace my home mattress. Highly highly highly recommended"
"We slept well on the Foamy mattress in our Rivian R1S. The fit and quality are good."
"I was skeptical about finding a mattress that actually fits the Rivian R1S without weird gaps or discomfort, but HEST nailed it. The Foamy for R1S is perfectly sized for the back of my R1S and provides insane comfort for a foam pad. It packs up neatly, sets up in seconds, and completely transformed my weekend camping trips. No more shifting air mattresses or stiff backs in the morning—this thing feels like a real bed. Absolutely worth it!"
"Incredibly comfortable and perfect fit. Replaced an old air mattress and couldn't be happier with the upgrade. My favorite accessory I've purchased for my Rivian so far."
"Perfect fit in the R1S- love my set up in the R1S - as comfortable as my home bed. Easy to set up too!"