5 Inch King Gel Memory Foam Mattress Topper for Pressure Relief,78x80 in

The EDUJIN 5 Inch King Gel Memory Foam Mattress Topper upgrades an existing king bed with a thick, supportive layer of cushioning. Designed to fit standard 78x80 inch mattresses, this topper provides significant extra depth for side, back, and stomach sleepers looking to soften a firm surface or refresh an older mattress. Its four-layer composite structure combines a one-piece gel memory foam filling with high-resilience support foam to deliver quick rebound and pressure relief.

Construction details focus on stability and daily comfort. The interior uses 2000GSM memory foam and fixed filling bonded with circle quilting, which prevents lumps, sponge displacement, and layer separation over time. On the outside, the topper uses breathable polyester peach fabric on both top and bottom to promote airflow and absorb sweat during sleep. The support foam layer also carries OEKO-TEX 100 certification.

Keeping a thick topper in place can be tricky, but this model includes an integrated 360-degree full elastic skirt. Designed like a deep-pocket fitted sheet, it accommodates mattresses ranging from 8 to 20 inches deep to prevent slipping, shifting, or edge warping. It arrives compressed and rolled in a compact box, making it easy to carry into bedrooms, guest rooms, or dorm rooms before unrolling directly onto the bed.

Because the topper ships vacuum-packed, you need to allow several hours for the foam to expand before regular use. The manufacturer notes that in some instances the foam might not fully reach its original condition, which requires contacting customer support for assistance. Additionally, adding a full five inches of height will noticeably raise your bed profile and may affect how your existing sheets fit.

Verdict: The EDUJIN 5-inch topper is a practical choice for anyone needing extra mattress cushioning paired with a secure, deep-pocket fit. It works well across various sleeping positions and suits home bedrooms, guest rooms, or rental spaces alike.

• Brand: EDUJIN
• Dimensions: 78 x 80 inches (King)
• Thickness: 5 inches
• Filling Weight: 2000GSM memory foam
• Skirt Depth: Fits mattresses 8 to 20 inches
• Fabric: Breathable polyester peach fabric
• Structure: 4-layer composite with gel memory foam and support foam
• Certification: OEKO-TEX Standard 100 (support foam)

A great fit if you:

• Need substantial 5-inch cushioning for back, side, or stomach sleeping.
• Have a mattress between 8 and 20 inches thick that needs a secure, non-slip fit.
• Want certified materials with OEKO-TEX 100 standard support foam.
• Need an easy setup for a master bedroom, guest room, or dorm.

Consider something else if you:

• Prefer a low-profile topper that does not add significant height to the bed.
• Need a topper that is ready for immediate sleep without an expansion waiting period.

What mattress depths will this topper fit?
The 360-degree full elastic skirt is designed with deep pockets that fit mattresses between 8 and 20 inches thick.

How do I set up the topper after delivery?
Open the outer box, carefully cut off the plastic packaging, and unroll the topper onto your bed. It will begin expanding immediately, though it typically takes several hours to reach full size.

What materials are used inside the topper?
It features a four-layer composite structure with 2000GSM filling, a one-piece gel memory foam core, OEKO-TEX 100 certified support foam, and a breathable polyester peach fabric cover.

What should I do if the foam does not expand completely?
If the compressed foam does not expand to its original shape after unboxing, contact customer service for further assistance.