Description
xOverview
Meet the Imperius Foldable Box Spring, a compact under-mattress support designed for twin beds (74" L x 38" W). This slim board reinforces the sleep surface without adding bulk, and it folds for easy storage. When flat, the board is 0.2 inches thick; folded for storage, it reaches about 0.8 inches. It weighs roughly 11 pounds, making it simple to relocate between rooms or take along on trips. Note: the board sits in the middle of the mattress area, with several inches kept clear on each side, rather than covering the entire surface.
Key benefits
- Adds targeted support under the mattress to help prevent sag and refresh the surface feel.
- Low-profile design firms up the sleep surface without adding noticeable height.
- Folds for compact storage and remains light enough to carry or pack for travel.
- Versatile under-mattress solution compatible with kid’s beds, bunks, sleeper sofas, pull-out beds, sofa beds, or beds with slats.
- Twin configuration provides a 74" L x 38" W area; folded size is 35" x 14.8"; weight around 11 pounds.
Use cases
- Great for upgrading a child’s bed or guest room with a minimal footprint.
- Ideal for bunks or sleeper sofas where a fixed box spring isn’t practical.
- Lightweight option for travelers or temporary setups where space matters.
- Provides a firmer feel without changing the bed frame.
How it works and care
The board sits between the mattress and the frame, designed to stay centered with several inches of mattress on each side. It folds flat for storage and is quick to unfold for use. It is not intended to cover the entire mattress surface. Keep the board dry and avoid bending beyond its folded state during handling.
Specs at a glance
Overall size: 74" L x 38" W. Folded size: 35" x 14.8". Flat thickness: ~0.2"; folded thickness: ~0.8". Weight: ~11 lb. Note: Not a full mattress foundation, but a practical middle-ground support where slim profile is desired.
FAQ
Q: What bed types is this under-mattress support suitable for?
A: Ideal for kids’ beds, bunks, sleeper sofas, pull-out beds, sofa beds, or beds with slats.
Q: What are the Twin dimensions and is storage easy?
A: Twin size is 74 by 38 inches; folded form stores compactly and weighs about 11 pounds.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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