TESMAT Complete kit
VS
Havnby Shaped profile

TESMAT Horizon vs Havnby FlatCore: Current Comparison

A $389 preorder snapshot compared with a separately dated $599 Model Y-specific shaped system; live totals and fulfillment can change.

By Fredrik Mastouri · Tesla camping gear reviewer

What this comparison can and cannot establish

This comparison uses current seller specifications and attributed public sources. We have not completed a matched hands-on test of both products, so unmeasured fit, comfort, noise and durability remain unknown.

The Quick Verdict

The trade-off is kit price versus shaped depth and integrated hardware. Horizon includes a separate rechargeable pump, fitted sheet and case. FlatCore uses a built-in 12V pump, publishes a 7.9–19 cm profile and a three-year warranty. Confirm Horizon dispatch timing and both products’ live terms.

Decision guide: Horizon for the lower-priced kit | FlatCore for the deeper shaped profile and built-in 12V pump

Side-by-Side Comparison

Side-by-Side Comparison
Feature TESMAT Horizon Havnby FlatCore
Evidence basis Seller specifications and attributed public sources Seller specifications and attributed public sources
Price $389 preorder observed 19 August 2026; seller estimated late-September delivery $599 observed 23 July 2026
Thickness 6 in (seller specification) 7.9–19 cm shaped profile
Type Hybrid air + foam kit Air-foam hybrid
Self-Inflating Wireless USB-C-rechargeable pump included Built-in 12V pump
Complete Kit Rechargeable pump, fitted sheet and case included Mattress only
Warranty Confirm live terms 3-year warranty
Fits Model Y or Model 3 (separate) Model Y

Key Differences

TESMAT Advantages

  • $389 preorder observed 19 August 2026, versus FlatCore's $599 list-price observation
  • Separate Model Y and Model 3 listings, while FlatCore is Model Y only
  • Rechargeable USB-C pump, fitted microfiber sheet and case included
  • Six-inch seller-specified profile, versus FlatCore's 7.9–19 cm shaped profile

Havnby Advantages

  • Model Y-specific 193 × 132 cm surface with a shaped 7.9–19 cm profile
  • Built-in 12V pump instead of Horizon's separate rechargeable pump
  • Seller-published three-year warranty
  • Seller-advertised 60-day trial, subject to the live return conditions

Who Should Buy Which?

Buy TESMAT If You...

  • You need a dedicated Model 3 option; FlatCore is listed for Model Y only
  • The $389 preorder observation is worth the $210 list-price gap and the delivery estimate suits your trip
  • You want the supplied USB-C pump, fitted sheet and case in one kit
  • A six-inch seller-specified profile preserves more cabin height than FlatCore's 19 cm maximum

Buy Havnby If You...

  • You want the Model Y-specific 7.9–19 cm shaped support profile
  • You prefer a built-in 12V pump over a separate rechargeable pump
  • The seller-published three-year warranty is clearer than Horizon's live terms
  • You have read the conditions behind Havnby's advertised 60-day trial

Frequently Asked Questions

Is TESMAT or Havnby better?

Neither is universally better. Horizon offers the lower checked price and bundled kit; FlatCore offers a deeper shaped profile and built-in 12V pump.

Which is thicker?

Horizon is listed at 6 inches. FlatCore ranges from 7.9 cm to 19 cm across its shaped surface, so a single maximum-depth comparison is incomplete.

Which has a better warranty?

FlatCore lists a three-year warranty. Confirm Horizon’s current warranty and compare regional exclusions and returns before ordering.

What price basis does this comparison use?

This comparison uses separate dated observations: a $389 TESMAT preorder on 19 August 2026 and Havnby’s $599 list price on 23 July 2026. No Havnby code is subtracted; confirm live totals, tax, shipping and TESMAT delivery timing.

Read Our Full Reviews

Review dated price and fulfillment terms

Continue comparing

Visual guides for your final shortlist

Official Tesla Model Y Air Mattress shown installed, unpacked and storedCompare all mattress options TESMAT and Havnby Tesla mattress product imagesPlan a setup for two TESMAT mattress fitted inside a Tesla for overnight campingUse Camp Mode overnight

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