Training and outdoor tips, monthly
Seasonal advice and new arrivals. Unsubscribe in one click.
Free UK delivery · Free 30-day returns · sportium.co.uk@gmail.com





Every order ships free with tracking. Timings are on our delivery page.
Email us with your order number within 30 days of delivery and we will send a prepaid returns label. Refunds go back to your original payment method.
Tell us the sport, your level and the measurements that matter at sportium.co.uk@gmail.com and we will help you choose.
EULANT's Car Rear Seat Mattress Extension Plate converts your vehicle's back area into a stable, flat resting surface for comfortable travel and camping.
Whether you're turning an SUV into a nap-ready space between the rear seats and trunk or creating a safer, more comfortable platform for kids and expectant passengers, this lightweight, odor-free extender plate fills the gap and evens out uneven surfaces. Made from eco-friendly PP board with a wear-resistant finish and simple fastenings, the plate installs quickly and folds for compact storage so you can bring it on road trips, family outings, or overnight stays.
Installation is designed to be straightforward and tool-free: lay the plate across the gap, use the Velcro backing and adjustable straps, then clip the buckles to the headrest bars. The plate holds itself in place by tension and the connection to your car’s existing trunk mat and rear seat geometry.
The EULANT plate uses eco-friendly polypropylene with a smooth, wear-resistant surface that resists odors and is simple to wipe clean. Its rigid, flat profile eliminates the gap and slope that usually make lying across the rear area uncomfortable, creating a more even resting platform for children, pregnant passengers, or anyone taking a break on the road.
The plate is engineered to suit a wide range of SUVs and cars with flat trunk layouts, including many Model Y/Model 3, RAV4, Outback and similar vehicles. Unfolded it measures approximately 131 x 42 x 1 cm and folds down to a compact size for convenient storage in trunks or under seats.
Use the plate alone or combined with a travel mattress, foam pad or the trunk mat to create a more comfortable sleep or rest area. It’s handy for camping, long drives, and roadside naps, serving as a bridging surface that stabilizes cushions and sleeping pads.
Who is this for? The EULANT Rear Seat Mattress Extension Plate is aimed at families, solo road trippers, and outdoor enthusiasts who want a quick way to even out their vehicle’s rear area for rest, naps, or makeshift sleeping. It’s especially useful for parents traveling with young children, expectant passengers seeking extra comfort, and anyone who wants a lightweight, odor-free, easy-to-install solution for turning a trunk and back seat into a practical resting platform.
Q: Can I install the extender alone or do I need help?
A: One person can install or remove the lightweight, foldable plate quickly using the Velcro and headrest straps.
Q: Is the material safe for children and pregnant passengers?
A: Yes, the plate is made from odorless, eco-friendly PP board suitable for family use and easy to clean.
Delivery: free and tracked to addresses across the UK, with no minimum spend. We email your tracking link as soon as your order is dispatched; timings are on our delivery page.
Returns: 30 days from delivery to return an unused item in its original packaging free of charge, with a prepaid label. This is on top of your 14-day legal right to cancel, and your Consumer Rights Act protections for faulty goods.
Damaged or wrong item? Email us a photo at sportium.co.uk@gmail.com and we will replace or refund it.
Seasonal advice and new arrivals. Unsubscribe in one click.
Thanks for subscribing!
This email has been registered!
| Product | Description | Collection | Availability | Product type | Other details |
|---|