The actual Model Y interior dimensions
With the rear seats folded flat, a Tesla Model Y provides a usable sleeping surface of roughly 75 inches long (front of trunk to back of front seats with seats fully forward) and 42-46 inches wide. The narrowest point is between the rear wheel wells. The surface is not perfectly flat — there is a 4-degree slope toward the front and small gaps between seat sections.
A purpose-built Tesla Model Y mattress matches this shape exactly. Generic rectangular mattresses leave dead space at the wheel wells and don't fill the seat gaps, which is why they sleep poorly.
Recommended Model Y mattress sizes
| Mattress | Dimensions | Thickness |
|---|---|---|
| Snuuzu Model Y | 190 x 107 cm | 10 cm foam |
| Havnby Autolevel | 187 x 105 cm | 19 cm foam + air |
| TESMAT Luxe Y | 189 x 108 cm | 10 cm hybrid |
Juniper compatibility
The 2024+ Model Y Juniper refresh slightly changed the rear bench geometry. Most major brands have updated their molds. Check our Model Y mattress guide for explicit Juniper-compatibility notes per product.
Ready to upgrade your Tesla camping setup?
See our top 10 picks →