Bed Wedge Pillow Gap Filler

Close the Gap Behind Your Bed for Good

Every night, something disappears down that strip between the mattress and the headboard. This foam wedge fills the space so pillows stay put, phones stop sliding behind the bed, and you stop fishing around on the floor. It runs the full width of the bed, so the fix covers twin, full, queen and king frames.

Why You'll Love It

• ✔ Fills the headboard gap — The tapered wedge sits snug between mattress and headboard, ending the nightly search.
• ✔ Stops pillow slip — Pillows stay where you put them instead of sliding down behind the bed.
• ✔ High-density foam — Holds its shape under nightly pressure instead of crushing flat after a few weeks.
• ✔ Covers the full width — Cut or trimmed to fit the width of your bed frame for a seamless look.
• ✔ Doubles as a back rest — The angled shape also works as a light reading prop against the headboard.

Specifications

Frequently Asked Questions

Is it soft, medium, or firm?

It is the plush-but-supportive middle — the fill holds its loft so your neck stays aligned, without the brick feeling of firm foam. Side and back sleepers both settle in well.

Does it go flat after a while?

The fill is high-rebound, so it springs back instead of flattening — that is what separates it from the budget pillows that turn into pancakes in two months.

How thick is it and who is it for?

Compare the loft in the photos to what you sleep on now — side sleepers want the fuller loft, back and stomach sleepers the lower one. It holds its height instead of pancaking by morning.

What is the wedge shape for?

It props you up for reading, TV, and reflux-friendly sleeping at the angle shown in the photos. It also fills the gap between mattress and headboard if yours has one of those.

Can I wash the whole pillow?

The cover is removable and machine washable on most of these — the core itself stays fresh with airing. The zip cover is the part that gets washed in the normal rotation.