Replacement Foam Inserts for Sleep Number® Beds

OVER THE RAIL Foam Inserts fit over the foam rails of Sleep Number® beds on top of the air chambers. They can be used in addition to your existing foam to mend tears or broken down spots, or in multiple layers to replace existing foam as needed.

The Block Foam design provides even support for each part of your body as well as easing the transition from the left side to the right side of your Sleep Number® bed.

Body Balancing Support Foam Inserts designed to fit over the foam rails of Sleep Number® beds to Prevent Bed-Sagging.

Sold In 2 Inch Layers with a .25 inch variance for the saw blade cut! Compatible with Sleep Number® Beds by Select Comfort® - Fits inside zipper cover on top of air chambers. 

We do not sell Sleep Number® Support Foam Inserts, SleepIQ® technology, or any other Sleep Number® or Select Comfort® products or services and we are in No Way Affiliated with Sleep Number®, Select Comfort®, and SleepIQ® are registered trademarks of the Select Comfort Corporation. The information on this site is strictly for comparison/adaptability purposes.

The design of The OVER THE RAIL Support Foam Inserts is to fit inside the zippered cover, on top of the air chambers and OVER the foam rails out to the edge! (Sold In 2 Inch Thick Layers with a .25 inch variance for the saw blade cut)

The Block design of each layer provides even support from head to toe for every part of your body as well as easing the transition from the left side to the right side of your Sleep Number® bed.

This Support Foam Insert can be used to Prevent Bed-Sagging in Sleep Number® beds.

The zippered cover of your Sleep Number® bed can stretch out after years of use much like your favorite pair of jeans. The fabric can stretch out causing the sides of the bed to bow out causing bed sagging and adding a New OVER THE RAIL Support Foam Insert into the inside of your zippered mattress cover can help reduce these effects by taking up the extra space inside the mattress cover.