No, you do not need a box spring, but you do need a solid, non-flexing foundation.
Because Lull mattresses are designed with modern foam layers, they require consistent, flat support to prevent sagging and ensure the warranty remains valid.
To ensure that you don’t void your Lull mattress warranty, your best options are:
- Platform Beds: A solid wooden or metal surface.
- Slatted Frames: As long as the slats are no more than 3 inches apart. If they are wider, the foam can dip between them, causing permanent damage.
- Adjustable Bases: Lull mattresses are flexible and fully compatible with motorized adjustable frames.
