[HIGH DENSITY FOAM] ThinMay bed gap filler are made of high density sponge with accurate size and good filling performance (size error within 0.5inch). Our bed space filler can fit tightly into the gap between the mattress, headboard or wall, no need to worry about shifting, really filling the space or crack, not just covering them up like other similar products. [HIGH QUALITY MATERIALS] The mattress extender cover is made of premium linen fabric, breathable and delicate touch; the filler is filled with upgraded environmentally friendly sponge, with excellent density and strong resilience, which can fundamentally solve the troubles brought by the gap for you. [MULTIPLE SIZE SELECTION] 39",54",60",72'',76" for Twin/Twin XL/Single/Full/Queen/Cal King/King Bed.Please measure the size of the space before purchasing and choose the corresponding mattress extender. Product size error: ±0.5 inches. [NECESSARY GOODS FOR FAMILY] The bed gap filler is designed to solve your worries caused by the space between headboard and mattress or wall, fill the gap and extend the mattress.Provide you with a comfortable and convenient sleeping. [AFTER-SALES SERVICE] As the product is packed in vacuum compression, it takes 2-48 hours recovery time after unpacking. You can detach the linen jacket and sponge, so the recovery will be faster. If you encounter any problems, please contact our customer service team, happy to help you. PRODUCT DESCRIPTION

Soft&Durable:
The cover of mattress extender is made of breathable linen fabric, soft and comfortable.
Removable &Zipper Design: Removable cover with zipper, easy to clean. It is pilling free and machine washable, making it the perfect choice for a restful night's sleep.
High Density Memory Foam: Fix the gap in your mattress with this high-density foam that stays cool in the summer and insulates in the winter. This bed gap filler for mattress/bed/wall features a breathable, hypoallergenic design that is perfect for insomniacs and can help anyone sleep comfortably at night. Made of high density foam to fix the mattress gap with low motion.

Warm Tip:
Due to the properties of the sponge, it may take up to 48-72 hours to fully expand after opening the package.