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By HEST · Updated October 2026
How to set up the HEST Foamy camping mattress: no pump, no inflation, ready in 30 seconds. Works for car camping, van life, SUV sleeping, and truck bed camping.
A bad night’s sleep doesn’t just make you tired. It makes the hike harder, the drive home miserable, and the whole experience feel like something you’d rather not repeat. What you sleep on affects every hour of your trip, not just the hours you spend lying on it.
Car camping is a specific opportunity. Unlike backpacking, you’re not carrying your sleep system on your back. Weight isn’t the constraint. Comfort is. Yet most car campers are still sleeping on inflatable gear designed for people who have to haul everything up a mountain.
"You planned this amazing trip. Don't skimp on the sleep. That one decision can make or break the whole experience."
Most people come to HEST after one too many bad nights on an inflatable. The story is almost always the same: they woke up on the floor at 2 a.m., cold and stiff, on a mattress that either sprang a leak on the rough floor of their car or simply lost pressure overnight.
Air mattresses have three problems for car camping:
Cheap memory foam has its own problem: it stiffens in the cold. Below about 30 degrees, low-grade foam can turn hard as a board, and you’re no longer sleeping on foam so much as a lightly padded plank.
The HEST Foamy avoids all of it. It’s two layers of temperature-resilient memory foam that stays responsive in the cold, carries an R-value of 8.8, needs no pump, makes no noise, and can’t go flat. It feels like your bed at home, just in the back of your car.
| Feature | Memory foam (HEST Foamy) | Air mattress |
|---|---|---|
| Comfort | Plush and supportive, feels like home | Firmness varies, often bouncy |
| Warmth | R-value 8.8, insulates from a cold floor | Usually low, cold air pulls heat away |
| Setup | Unroll, about 30 seconds | Several minutes with a pump |
| Deflation risk | None | Leaks, punctures, pressure loss in the cold |
| Noise | Silent | Squeaks and crinkles when you move |
| Packed size | Bulkier, rolls to about 25 x 12 inches | Packs small |
| Best for | SUVs, wagons, cold nights, anyone who wants real sleep | Occasional warm-weather trips, very small cars |
The honest trade-off: foam takes up more room than air. If your vehicle has room for a rolled mattress about 25 x 12 inches between trips, you’ll sleep better on foam than on anything that needs inflating. For a deeper comparison, read Foam vs. Inflatable: Which Is Best for Car Camping?
A few things make this setup work better:
Getting the size right is the most important decision, and the most common mistake we see.
Solo camper:Foamy Regular (78" x 25"). The most popular choice for car camping. It fits most SUV cargo areas and gives you full sleeping comfort without taking over the whole floor.
Two people:two Foamy Regulars, linked. Integrated side clips join two Foamys into a 78" x 50" bed. This is almost always a better choice than a Dually for car camping: easier to store, easier to configure, and it fits more vehicles.
Smaller SUVs and wagons:Foamy Short(64" x 25"). Built for shorter cargo areas where a Regular won’t lie flat. If a Regular is only slightly too long, the extra length can rest against the front seats as a headrest.
Larger solo sleepers:Foamy Wide (78" x 30"). Extra shoulder room for one person. For two people, two Regulars give you more total surface and a better night for both of you.
The most common mistake: buying a Dually for car camping when two linked Foamys would fit better. Each Foamy rolls up on its own, stores more easily, and gives you the same sleeping surface with more flexibility.
| Model | Size | Best For | Sleepers | Linked Width |
|---|---|---|---|---|
| Foamy Short | 64" × 25" | Smaller SUVs, Subarus, compact cars | 1 | 50" (two linked) |
| Foamy Regular Most Popular | 78" × 25" | Most SUVs, standard car camping setups | 1 | 50" (two linked) |
| Foamy Wide | 78" × 30" | Solo sleepers who want extra shoulder room, taller or larger sleepers (6'2"+) | 1 | 60" (two linked) |
| Two Foamy Regulars linked | 78" × 50" | Two people in a standard SUV or larger | 2 | 50" |
| Two Foamy Wides linked | 78" × 60" | Two people who want maximum sleeping width | 2 | 60" |
Rivian R1S or R2:the purpose-built Foamy for R1S and Foamy for R2 are shaped to your cargo area. See HEST x Rivian.
Truck bed:a Dually sized to your bed. See Best Mattress for a Truck Bed.
Sprinter or Transit van:the Dually Custom S. See Best Mattress for a Sprinter Van.
Rooftop tent:See Best Rooftop Tent Mattress Replacement.
Sedan or hatchback:measure first. Many small cars don’t have a flat, full-length surface, so the Foamy Short is the place to start. If it won’t fit inside, the Foamy works just as well in a tent beside the car.
Car camping in the cold is more comfortable than tent camping for one simple reason: you’re sheltered on all sides. But your sleep system still has to do its job, and most of the cold comes up from the floor.
With an R-value of 8.8, the Foamy blocks that cold from below. HEST customers regularly use it below 30 degrees. Below 20 degrees it gets genuinely cold, but with the right system it’s manageable:
This is the use case that converts more car campers to HEST than any other.
That’s exactly what the Foamy is built for. Pull in, fold the seats, unroll, and you’re asleep in under five minutes. No pump. No poles. No guy lines. Wake up, roll it back up, and you’re on the trail before anyone else arrives.
Consistency is the point. A system you can set up in the dark, in five minutes, without thinking about it is what turns the trailhead overnight from a miserable compromise into the best part of the trip.
HEST Camp Pillow. The same memory foam comfort as the Foamy, in a pillow that packs small. Unlike down or synthetic fill, it doesn’t flatten overnight or hold moisture after a damp night. Add or remove fill to set the loft exactly how you like it, and it stays soft when the temperature drops.
HEST Foamy Duffel. The dedicated storage bag for the Foamy. Roll the mattress, slip it in, and it’s protected and easy to carry. Between trips it doubles as a guest bed, so your mattress earns its keep 365 days a year.
HEST Comforter. Warmth from above to match the Foamy’s insulation from below.
Every HEST mattress comes with free returns, a 100-day money back guarantee, and a 5-year warranty. Shop the HEST Foamy
The HEST Foamy is the best mattress for car camping. It’s 3.9 inches of memory foam with an R-value of 8.8 that requires no pump or inflation, stays soft in cold temperatures, makes no noise when you move, and fits most SUV cargo areas. Unlike air mattresses, it can’t deflate or puncture overnight. Unlike cheap memory foam, it doesn’t harden in cold weather.
What size mattress do I need for car camping?
For solo car camping in a standard SUV, the Foamy Regular (78" x 25") fits most cargo areas. For smaller SUVs, wagons and compact cars, the Foamy Short (64" x 25") is the right call. For larger solo sleepers who want more shoulder room, choose the Foamy Wide (78" x 30"). Measure from the back of the front seats to the closed hatch with the rear seats folded before you buy.
What’s the best car camping mattress for couples?
Two Foamy Regulars linked with the built-in side clips create a 78" x 50" bed that fits most SUVs. Each person gets their own surface, so you won’t feel your partner roll over. For maximum width, link two Foamy Wides for a 78" x 60" bed.
Is a memory foam mattress good for car camping?
Yes, with one caveat: not all memory foam is equal. Cheap memory foam stiffens and hardens in the cold, which makes it nearly useless on a cold night. HEST uses temperature-resilient memory foam engineered to stay responsive below freezing. Above 50 degrees, most foam works fine. In shoulder seasons and winter, foam quality matters a lot.
Should I get a foam or inflatable mattress for car camping?
Foam is the better choice for most car campers. Air mattresses puncture on rough cargo floors, make noise every time you move, and lose body heat through the air inside. Foam can’t deflate, stays quiet, and insulates you from the cold floor. The main advantage of air is that it packs smaller.
Can you car camp in cold weather with a foam mattress?
Yes. With an R-value of 8.8, the Foamy insulates you from the cold car floor, and HEST customers regularly use it below 30 degrees. Below 20 degrees, add a quality comforter or sleeping bag on top. The mattress itself stays soft and keeps conforming to your body in the cold.
Should I get a Foamy or a Dually for car camping?
For most car camping setups, one or two Foamys is the better choice. Two Foamy Regulars linked together give you the same sleeping area as a Dually Long (78" x 50") but roll up individually for easier storage and more flexible configuration. The Dually is better suited to truck beds, rooftop tents and ground tents, where a single large mattress is easier to manage.
Can I use a regular mattress in my car?
Home mattresses aren’t sized for vehicle cargo areas, don’t roll up for storage, and aren’t built for damp or dirty conditions. Many home mattresses also use foam that stiffens in the cold. A car camping mattress is sized for your vehicle, packs between trips, and is made to handle outdoor use.
What’s the difference between a car camping mattress and a backpacking pad?
Backpacking pads are built to be as light and compact as possible because you carry them on your back. Car camping mattresses are built for comfort, warmth and durability because your vehicle carries the weight. If you’re sleeping in or next to your car, you don’t need to make the comfort trade-offs a backpacker does.
Can a car camping mattress get wet?
The HEST Foamy has a waterproof base that keeps the foam dry on damp floors, wet tent bottoms and condensation. The top cover isn’t meant to be soaked. If the foam does get wet, unzip the cover and let everything dry completely before storing it.
How do I clean and store a car camping mattress?
Wipe down the waterproof base after each trip. To clean the cover, unzip it, remove the foam, and wash the cover following the care label, then let it dry fully before putting it back on. Store the mattress dry, unrolled when you can, or rolled in the Foamy Duffel.
What do I need for a complete car camping sleep setup?
Three things: a HEST Foamy sized for your vehicle, a HEST Camp Pillow, and a quality comforter or sleeping bag rated for the temperatures you’ll see. The Foamy insulates from below, the pillow gives your head and neck the same memory foam support, and the comforter handles warmth from above.
