---
title: "TESMAT Horizon vs Havnby FlatCore: Comparison"
canonical: "https://teslamattress.com/vs/tesmat-vs-havnby"
markdown_url: "https://teslamattress.com/vs/tesmat-vs-havnby.md"
language: "en"
author: "Fredrik Mastouri"
checked: "not-provided"
content_updated: "2026-08-19"
evidence_scope: "editorial-summary-not-directly-cited"
source_scope: "visible page heading, answer and main content"
---

TESMAT Complete kit

VS

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](/about) · 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

| 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

[TESMAT Horizon Full Review →](/reviews/tesmat-luxe-y) [Havnby FlatCore Foam Mattress Review →](/reviews/havnby-autolevel)

## Review dated price and fulfillment terms

[Review TESMAT Horizon preorder terms · $389 observed 19 August 2026 · Seller estimated late-September delivery](https://www.tesmat.com/products/tesmat-luxe-for-model-y) · [See Havnby price and terms](/discounts/havnby)

Continue comparing

## Visual guides for your final shortlist

[Compare all mattress options](/guides/best-tesla-mattresses) [Plan a setup for two](/guides/best-tesla-mattress-for-couples) [Use Camp Mode overnight](/faq/how-to-use-tesla-camp-mode)

Page last revised: August 19, 2026