Specialist vs official accessory
Tesla sold its Model Y Air Mattress for $225 and Havnby listed the FlatCore at $549 on 1 October 2026. The FlatCore is shaped deeper at the seatback end, has a built-in pump and comes with a 60-day trial. The Tesla mattress is the official fit for every Model Y except the Model Y L.
Havnby FlatCore
Air-foam hybrid
Tesla Model Y Air Mattress
Official foam + air
This comparison uses seller specifications and attributed public sources. We have not completed a matched hands-on test of both products. Our rating is the editors’ judgement, not a sleep test.How we rate
Quick verdict
Choose the Havnby FlatCore when you want the seat slope filled by a shaped profile, a pump inside the mattress and a 60-day trial. Choose the Tesla Model Y Air Mattress when the $225 price, the official Tesla fit and a thin 8 cm profile matter more, and when you can accept that Tesla does not take back a used mattress.
Choose Havnby FlatCore when
You want the 7.5-inch seatback end and 3.1-inch trunk end to fill the seat slope.
All 4 reasonsChoose the Tesla Model Y Air Mattress when
The $225 price and the $324 saving decide it.
All 4 reasonsWe read both product pages on 1 October 2026. The Havnby page was read with the US store setting. The Tesla figures come from the US Tesla Shop, the Model Y Air Mattress instruction sheet and Tesla’s shop support pages. Our Tesla air mattress guide covers all four Tesla mattresses.
| Factor | Havnby FlatCore | Tesla Model Y Air Mattress |
|---|---|---|
| Price checked 1 October 2026 | $549 | $225, in stock in the US Tesla Shop |
| Vehicle fit | Model Y 2020–2024 and Model Y 2025–2026 variants | Every Model Y except the Model Y L |
| Size | 193 × 132 cm (76 × 52 in) | 191 × 130 cm (74.4 × 50.4 in) |
| Depth | 19 cm (7.5 in) at the seatback end, 7.9 cm (3.1 in) at the trunk end | 8 cm (3.12 in) |
| Construction | Foam over a shaped air base | 3-inch high-density foam in a waterproof polyester shell |
| Pump | Built-in 12V ABS pump | Separate air pump and adapter in the box |
| Weight | 5.1 kg (11.2 lb) | Not published |
| Returns | 60-day sleep trial from delivery | 30 days; 15% restocking fee if opened; no return after use |
| Warranty | 3 years for orders from 1 June 2026 | 1 year for direct-ship accessories |
| Next stepAffiliate links: we may earn a commission at no extra cost to you. | Shop · −10%: Havnby FlatCore Foam Mattress, code AWDReview: Havnby FlatCore Foam Mattress | Read the review: Tesla Model Y Air Mattress |
$324The FlatCore cost $549 and the Tesla Model Y Air Mattress cost $225 on 1 October 2026, before tax and shipping.
Havnby lists a shaped profile, a pump inside the mattress, a fitted sheet, a storage bag and a 60-day trial for the extra money. Tesla sells a thin foam-and-air mattress with a separate pump, two repair patches and the official compatibility statement.
The Tesla mattress is the low-cost choice for an owner who camps a few nights a year. The FlatCore is the choice for an owner who finds the seat slope uncomfortable on a flat pad.
Havnby FlatCore
7.5 in to 3.1 in, shaped
Havnby makes the FlatCore thicker at the seatback end and thinner at the trunk end, so that it fills the step of the folded seats. Havnby publishes no measured angle.
Tesla Model Y Air Mattress
3.12 in, one even layer
Tesla states that the mattress fits across the folded rear seats and the trunk. Its 8 cm profile follows the cargo floor and leaves the most headroom of the two.
Havnby FlatCore
Built-in 12V pump, about 80 s
Havnby states about 80 seconds to inflate and about 90 seconds to deflate. The pump stays inside the mattress.
Tesla Model Y Air Mattress
Separate pump, 12 V socket
Tesla puts an air pump and an adapter in the box. The instruction sheet shows the pump on a 12 V socket. Tesla recommends the pump for the first inflation, because the first self-inflation can be slow.
Havnby FlatCore
60-day trial, 3-year warranty
Havnby lets you sleep on the mattress for up to 60 days after delivery and then return it. An opened return can cost a condition fee of $10 to $30, plus return shipping.
Tesla Model Y Air Mattress
30 days, no return after use
Tesla takes back unopened accessories within 30 days. Opened and unused items have a 15% restocking fee. Used items cannot be returned. Direct-ship accessories have a one-year warranty, and the mattress is not named in Tesla’s warranty table.
The operator owns a FlatCore Model Y and a FlatCore Solo. His Havnby Solo vs Full Size video (the operator’s YouTube channel, 15 July 2026) shows both mattresses in a Model Y. It gives no measurement. Our owner experience covers the Havnby side only.
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AWDCart-tested 16 Sep 2026 The code page shows the full cart test.
We have no partner code for Tesla. The link opens the seller page.
For Havnby, pick the Model Y year range and confirm the delivered total. For Tesla, confirm that your car is not a Model Y L and read the return rules before you open the box. Read the Tesla Model Y Air Mattress review Read the Tesla air mattress guide
Havnby lists more: a shaped 7.5-to-3.1-inch profile, a built-in pump, a 60-day trial and a three-year warranty. The Tesla Model Y Air Mattress costs $324 less and has Tesla’s own fit statement.
The Tesla Model Y Air Mattress, at $225 in the US Tesla Shop. Havnby listed the FlatCore at $549. Both prices are before tax and shipping.
Tesla states that its mattress fits every Model Y except the Model Y L. Havnby sells a FlatCore variant for the 2025–2026 Model Y. Neither mattress is for the Model Y L.
No. Tesla does not take back used items. Opened and unused items have a 15% restocking fee within 30 days. Havnby gives a 60-day sleep trial, with a condition fee for an opened return.
The Tesla mattress, at 8 cm (3.12 in). The FlatCore is 19 cm (7.5 in) at the seatback end and 7.9 cm (3.1 in) at the trunk end.
We did not measure fit, slope, warmth or durability for either mattress.
Keep researching
By Tesla Mattress Guide Page last revised
