FlatCore Hybrid Support Mattress for Toyota Sienna
Vehicle-Specific Fit: Designed for the Toyota Sienna cargo area.
Trunk-Leveling Support: Helps reduce rear-seat slope for a flatter car bed.
Foam Comfort: Stable cushioning for overnight car camping.
Fast Inflation: Inflates in 60 seconds and deflates in 70 seconds with a built-in rechargeable pump.
Compact Storage: Packs down for easier trunk and home storage.
Road Trip Ready: Ideal for SUV camping, EV camping, and weekend getaways.
0°
Level Sleep Surface
FlatCore helps turn sloped folded seats into a level sleep surface, correcting vehicle-seat angles that can reach up to 12°.
7.5"
Real Mattress Feel
High-density foam adds the kind of steady support thin air pads cannot give. Less sag, less wobble, more sleep-after-the-drive comfort.
1 min
Ready to Rest
The built-in pump gets the mattress ready in about a minute, keeping camp setup simple after a long drive.
Flat Surface. Full Space.
Built-in Pump. 60 Seconds.
Air + Foam Provides Ultra Comfort.
Better Material. Better Sleep.
Genuinely Soft
|
Havnby FlatCore
|
Outdoor Car Mattress
|
Brand-Made Mattress
|
Other Camp Pads
|
|
|---|---|---|---|---|
| Vehicle Fit | ✓ | ✓ | ✓ | × |
| Sleep Flat | ✓ | × | × | × |
| Thickness | > 6.5" | ~4" | ~3" | 2"-4" |
| Material | Odor-free TPU | Oxford+TPU base | Polyester exterior | × |
| Side Sleeper Friendly | ✓ | Adjustable firmness only | × | × |
| Setup Time | < 100 sec, built-in pump | External pump | External pump | Self-Inflates & AirRollBag |
| Packed Size | Gym bag | Big carry bag | Fits sub-trunk | Bulky |
| Leak & Puncture Resistant | ✓ | ✓ | ✓ | × |
What real owners are saying
Jessica M., Mom of Two · Austin, TX
Road Trip Essential
“Perfect for long road trips. It inflates quickly, fits my SUV well, and gives the kids a comfortable place to rest during stops.”
Ryan K., Weekend Camper · Denver, CO
Comfort That Lasts Overnight
“Surprisingly comfortable for a car mattress. The material feels durable, and it stayed inflated overnight with no issues.”
Amanda L., Frequent Road Tripper · Portland, OR
Great for Camping & Travel
“Easy to set up, easy to pack away, and much better than trying to nap in a regular car seat.”