DEEPSHARK Mattress Extender for King Bed
Gap filler for king beds that contours to mattress seams to reduce shifting. Provides the ability to fill space between headboard and mattress with a high-density, eco-friendly sponge core. Customers note it fits between mattress and headboard, with mixed opinions on size and expansion
Highlights
- fits tightly to mattress seams
- removable cover for easy cleaning
- high-density 45D sponge core
Pros
- High-density material
- Fits tightly to mattress seams
- Multiple sizes available for king beds
- Removable cover
Cons
- Mixed reviews on size accuracy
- Some reports that foam doesn't fully expand
- Stability may vary
Best For
Features
- Fits king beds with 16 size options and snug mattress seam alignment
- High-density 45D sponge core provides support with a removable washable cover
- Expansion occurs within 48-72 hours after unpacking due to compression
- Removable, machine- or hand-washable cover with a durable zip
- Designed to reduce bed space filler shifting and dropped items
