SyMax

SyMax King Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Bed Topper Mattress Pads for Bed Sofa

229+ bought in the past month

$104.49$119.99

About this item

  • ▶Body-Hugging Comfort for Better Sleep: High-quality memory foam conforms perfectly to your body, relieving pressure and ensuring restful sleep, no matter how you move throughout the night
  • ▶Breathable and Cool Design: Special gel-infused technology keeps the topper breathable and cool, helping you stay comfortable all night without overheating
  • ▶Affordable Mattress Upgrade: Easily extend the life of your mattress without the cost of a new one, and enjoy luxurious sleep at a fraction of the price
  • ▶Easy Setup, Quick Expansion: Leave it out for 24-72 hours for full expansion, and it will be ready for use even faster at the right temperature
  • ▶Peace of Mind with After-Sales Support: Enjoy a 10-year warranty and lifetime customer service, with our team ready to assist you anytime after your purchase
$104.49
Was $119.99Save $15.50

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Product details

BrandSyMax
ColorBlue(4 Inch)
SizeKing
Fabric TypeMemory Foam, Polyester Fiber
Special FeatureTear-Resistant

Technical specifications

brandSyMax
colorBlue(4 Inch)
sizeKing
fabric_typeMemory Foam, Polyester Fiber
special_featureTear-Resistant
closure_typePull On
product_care_instructionsSpot Cleaning, Vacuuming
water_resistance_levelNot Water Resistant
age_range_descriptionAdult
materialGel Memory Foam
model_nameL3K
number_of_items1
manufacturerSyMax
item_firmness_descriptionMedium Soft
product_dimensions80 x 76 x 3 inches
item_weight28.9 pounds
item_model_numberLK
best_sellers_rank#32,734 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #94 in Mattresses Toppers
date_first_availableJune 28, 2024

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Customer reviews

4.5873 ratings

Customers say

Customers find the mattress topper comfortable and pain-free, with good support that eliminates back pain and hip aches.

★★★★★

The quality of this mattress topper exceeded my expectations.

Dani J.December 6, 2025

I haven’t written many reviews, but this product definitely deserves one. I’m very impressed by the quality of this mattress topper. I did order it with the cover because I wanted to protect it. Plus, I have a mattress cover over it that is spill proof, and then my sheet. I bought this to go on top of my very firm a full size mattress. It fits perfectly and was so easy to put on my bed. I have to say this thing is amazing! It puffed up completely within a couple of hours. Once I had it on my bed and my bed made I just had to take a nap to see how comfy it was. It was extremely comfortable! I’ve had a few toppers, but never one as comfortable for the money. I had one that I paid over $100 for that was nothing compared to this. At the time I purchased this I paid 70 something dollars and that included the cover. I think it’s a great value for my money. Read more

★★★★★

Good comfort

Leydi AburtoJanuary 10, 2026

Do yourself a favor and get this ! It’s soft enough for comfort and it truly stays cool and feel gel like foam. Sleep quality is way better !!!! Read more

Review image 1
★★★★★

Great value

DonnaSeptember 30, 2025

I ordered this to put on top of an older futon mattress in our spare room that was pretty worn because my kids were coming to visit and I wanted it to be more comfortable for them. They said it was very comfortable and they slept great! I laid on it for a few minutes after I changed the sheets and it seemed nice and firm with good support. Seems like a great value. Read more

★★★★☆

Good quality!

sal tomasJune 7, 2025

This is one of the most comfortable mattress toppers I have ever slept on! I love that it comes with a cover and it fluffed up in a feed hours! No lumps or dents , it did have a weird smell when first opened but went away after a few hours (I did spray it with Lysol though). Overall super amazing and comfortable! Read more

★★★★★

SO COZY!

romaNovember 10, 2025

I got the 4 inch topper for my king size bed and it is the best mattress topper I’ve ever had! The cooling is very nice. My back has never felt better in the mornings and I don’t toss and turn as much anymore at night, now it’s just been hard to get myself out of bed in the mornings because of how cozy it is! The only thing that kinda sucks about it is my bed sheets no longer fit nice so at least if you’re going for the 4 inch plan on sizing up on sheets but for that being the only negative I absolutely recommend this to anyone thinking about buying! Read more

★★★★★

Very comfortable. Best buy!

Smaller size than normalJanuary 6, 2026

I placed this topper on an airbed which made it feel like I'm using a mattress. It saved me $$$ from buying an actual mattress. Read more

★★★★★

Great quality mattress topper!

Renee GDecember 15, 2025

Very impressive mattress topper! I needed something to provide a little cushioning for my hips at night. The quality of this topper is 5⭐️! It comes with a zippered encasemt, straps to affix around each corner and a bottom that has a rubbery texture to reduce the topper moving off the bed. It provides wonderful layer of cushioning to eliminate pressure point. This has been the best topper ever purchased for my bed. Extremely well made and great price! Read more

★★★☆☆

Didn't serve the purpose

TrayOctober 1, 2025

This is fluffy and soft but it keeps sliding down my mattress and sliding over. I got it to help with a dip in my mattress and it definitely didn't do it Read more

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