Mainstays 1.5" Memory Foam Mattress Topper, King
Key item features
- Pressure-Relieving Comfort: Ergonomic, contour-cut memory foam surface provides targeted relief and is treated with an antimicrobial finish for a clean, fresh sleep environment.
- Customizable Support: Choose your comfort—use the flat side for a firmer feel or the contoured wave side for a massaging effect and enhanced body contouring.
- All-Season Breathability: Contoured design promotes airflow and reduces heat buildup, offering pressure-point relief for the head, shoulders, and hips—ideal for all sleep styles.
- Certified Sustainable Quality: Made with bio-based memory foam certified by the USDA’s Biopreferred program and backed by CertiPUR-US® and OEKO-TEX® Standard 100 certifications for safety, durability, and performance.
Specs
- Thickness1.5 in
- Bed sizeKing
- FirmnessFirm
- MaterialMemory Foam
- Fill materialMemory Foam
- FeaturesAntimicrobial, Hypoallergenic
Reviews summary
- : Provides extra comfort without being too thick.
- : Offers good value considering the cost.
- : Provides adequate support for a restful night.
- : Fits snugly on standard mattress sizes.
How do you want your item?
Similar items you might like
Based on what customers bought
Reduced price CONCETTA 2 inch 5-Zone Queen Size Egg Crate Foam Mattress Topper, Lavender Cooling Gel Infused Bed Pad for Back Pain, CertiPUR-US and Oeko-TEX Certified $40.99 Was $52.99
Reduced price
SponsoredNow$4099current price Now $40.99, Was $52.99$52.99You save $12.00You save$12.00CONCETTA 2 inch 5-Zone Queen Size Egg Crate Foam Mattress Topper, Lavender Cooling Gel Infused Bed Pad for Back Pain, CertiPUR-US and Oeko-TEX Certified
85 out of 5 Stars. 8 reviewsSave with
Shipping, arrives in 2 daysZ-hom Full Mattress Topper with Cover, 3 Inch Cooling Gel Memory Foam Mattress Topper Plush Full Size Mattress Toppers Pad with Skin-Friendly Non-Slip Protector Cover for Back Pain, White $59.99
Sponsored$5999current price $59.99Z-hom Full Mattress Topper with Cover, 3 Inch Cooling Gel Memory Foam Mattress Topper Plush Full Size Mattress Toppers Pad with Skin-Friendly Non-Slip Protector Cover for Back Pain, White
1714.2 out of 5 Stars. 171 reviewsSave withShipping, arrives in 3+ daysIn 100+ people's carts Mainstays 1.25" 7-Zone Foam Mattress Topper $12.44
In 100+ people's carts
6 optionsAvailable in additional 6 options$1244current price $12.44Mainstays 1.25" 7-Zone Foam Mattress Topper
54434 out of 5 Stars. 5443 reviewsIn 50+ people's carts Mainstays 1.5" Memory Foam Mattress Topper $24.98
In 50+ people's carts
4 optionsAvailable in additional 4 options$2498current price $24.98Mainstays 1.5" Memory Foam Mattress Topper
35204.3 out of 5 Stars. 3520 reviewsMellow 1.5" 5-Zone Memory Foam Mattress Topper with Aloe Infusion $18.44 Was $26.99
5 optionsAvailable in additional 5 options$1844current price $18.44, Was $26.99$26.99Mellow 1.5" 5-Zone Memory Foam Mattress Topper with Aloe Infusion
1994.4 out of 5 Stars. 199 reviewsBest seller Alvantor 2/3 Inch Cooling Gel Memory Foam Mattress Topper for Back Pain Relief,2 Inches,Twin $16.14
Best seller
10 optionsAvailable in additional 10 options$1614current price $16.14Alvantor 2/3 Inch Cooling Gel Memory Foam Mattress Topper for Back Pain Relief,2 Inches,Twin
3484.3 out of 5 Stars. 348 reviewsBDEUS 2" 5-Zone Memory Foam Mattress Topper, Ergonomic Pressure Relief Bed Topper, Twin Size $28.99 Was $100.00
SponsoredNow$2899current price Now $28.99, Was $100.00$100.00You save $71.01You save$71.01BDEUS 2" 5-Zone Memory Foam Mattress Topper, Ergonomic Pressure Relief Bed Topper, Twin Size
5364.5 out of 5 Stars. 536 reviewsSave withShipping, arrives in 3+ days2 Inch Mattress Topper, Twin Gel Memory Foam Mattress Topper in a Box $24.74
4 optionsAvailable in additional 4 options$2474current price $24.742 Inch Mattress Topper, Twin Gel Memory Foam Mattress Topper in a Box
3994.5 out of 5 Stars. 399 reviewsBDEUS 2 inch Gel Cooling Memory Foam Mattress Topper, Memory Foam Egg Crate Mattress Topper, CertiPUR-US Certified, Twin Size $29.99 Was $55.00
14 optionsAvailable in additional 14 options$2999current price $29.99, Was $55.00$55.00BDEUS 2 inch Gel Cooling Memory Foam Mattress Topper, Memory Foam Egg Crate Mattress Topper, CertiPUR-US Certified, Twin Size
5224.4 out of 5 Stars. 522 reviewsBDEUS 2 inch Gel Cooling Memory Foam Mattress Topper, Memory Foam Egg Crate Mattress Topper, CertiPUR-US Certified, Twin Size $25.99 Was $50.00
25 optionsAvailable in additional 25 options$2599current price $25.99, Was $50.00$50.00BDEUS 2 inch Gel Cooling Memory Foam Mattress Topper, Memory Foam Egg Crate Mattress Topper, CertiPUR-US Certified, Twin Size
2874.4 out of 5 Stars. 287 reviewsReduced price JIOABL 2-Inch Memory Foam Mattress Topper with Cooling Gel, CertiPUR-US Certified, Pressure Relief & Breathable Comfort Bed Topper, Full Size $28.99 Was $47.99
Reduced price
18 optionsAvailable in additional 18 options$2899current price $28.99, Was $47.99$47.99JIOABL 2-Inch Memory Foam Mattress Topper with Cooling Gel, CertiPUR-US Certified, Pressure Relief & Breathable Comfort Bed Topper, Full Size
9084.4 out of 5 Stars. 908 reviewsIn 50+ people's carts Mainstays 2" Memory Foam Mattress Topper $40.00
In 50+ people's carts
11 optionsAvailable in additional 11 options$4000current price $40.00Mainstays 2" Memory Foam Mattress Topper
54124.4 out of 5 Stars. 5412 reviewsLinenspa 1.5" 7-Zone Cooling Gel and Green Tea Infused Memory Foam Mattress Topper, Twin $23.00
12 optionsAvailable in additional 12 options$2300current price $23.00Linenspa 1.5" 7-Zone Cooling Gel and Green Tea Infused Memory Foam Mattress Topper, Twin
1794.4 out of 5 Stars. 179 reviewsBDEUS 2" Mattress Topper, Gel Memory Foam Bed Topper for Pressure Relief, Twin Size $26.99
5 optionsAvailable in additional 5 options$2699current price $26.99BDEUS 2" Mattress Topper, Gel Memory Foam Bed Topper for Pressure Relief, Twin Size
264.3 out of 5 Stars. 26 reviewsCONCETTA 2 inch Foam Mattress Topper, CertiPUR-US Certified, Queen $22.99
9 optionsAvailable in additional 9 options$2299current price $22.99CONCETTA 2 inch Foam Mattress Topper, CertiPUR-US Certified, Queen
434.4 out of 5 Stars. 43 reviewsBDEUS 2" Gel Memory Foam Mattress Topper 5-Zoned Support Mattress Topper，Reversible Beds Topper,Twin Size $26.99 Was $49.99
11 optionsAvailable in additional 11 options$2699current price $26.99, Was $49.99$49.99BDEUS 2" Gel Memory Foam Mattress Topper 5-Zoned Support Mattress Topper，Reversible Beds Topper,Twin Size
944.4 out of 5 Stars. 94 reviewsBest seller BDEUS Extra Thick Mattress Topper, Cooling Mattress Pad Cover,Pillow Top Protector with 8-21 Inch Deep Pocket, Twin Size $30.59 Was $33.99
Best seller
$3059current price $30.59, Was $33.99$33.99BDEUS Extra Thick Mattress Topper, Cooling Mattress Pad Cover,Pillow Top Protector with 8-21 Inch Deep Pocket, Twin Size
42734.2 out of 5 Stars. 4273 reviewsSpa Sensations by Zinus Memory Foam Mattress Topper Gel Infused Zoned $28.98
12 optionsAvailable in additional 12 options$2898current price $28.98Spa Sensations by Zinus Memory Foam Mattress Topper Gel Infused Zoned
24684.2 out of 5 Stars. 2468 reviewsClearance 3 inch Gel Memory Foam Mattress Topper Twin- CertiPUR-US Certified Cooling Layer for Enhanced Comfort $23.39 Was $36.99
Clearance
10 optionsAvailable in additional 10 options$2339current price $23.39, Was $36.99$36.993 inch Gel Memory Foam Mattress Topper Twin- CertiPUR-US Certified Cooling Layer for Enhanced Comfort
224.8 out of 5 Stars. 22 reviewsMellow Memory Foam Egg Crate Mattress Topper with Lavender Infusion $32.99
22 optionsAvailable in additional 22 options$3299current price $32.99Mellow Memory Foam Egg Crate Mattress Topper with Lavender Infusion
11734.4 out of 5 Stars. 1173 reviews
About this item
Product details
- Pressure-Relieving Comfort: Ergonomic, contour-cut memory foam surface provides targeted relief and is treated with an antimicrobial finish for a clean, fresh sleep environment.
- Customizable Support: Choose your comfort—use the flat side for a firmer feel or the contoured wave side for a massaging effect and enhanced body contouring.
- All-Season Breathability: Contoured design promotes airflow and reduces heat buildup, offering pressure-point relief for the head, shoulders, and hips—ideal for all sleep styles.
- Certified Sustainable Quality: Made with bio-based memory foam certified by the USDA’s Biopreferred program and backed by CertiPUR-US® and OEKO-TEX® Standard 100 certifications for safety, durability, and performance.
Specifications
Thickness
Bed size
Firmness
Material
Warranty
Warranty information
Warranty url
Customer ratings & reviews
Reviews summary
- : Provides extra comfort without being too thick.
- : Offers good value considering the cost.
- : Provides adequate support for a restful night.
- : Fits snugly on standard mattress sizes.
Customer photos
+124 images
Showing 1-3 of 366 reviews
Good
It is pretty thing, but in this case it is a good thing for what I need it for. It would have also been good for my old bed in which was 14" high and most foam toppers were too tall. This one is thin enough for a tall mattress while giving a little more support and comfort. Actually used this one for the couch, in between the couch and cushions and yes it gave the added support I was looking for.
Thank you for your review! We are very happy to hear that you are enjoying your purchase of the Mainstays 1.5-inch Memory Foam Mattress Topper and pleased that you choose us to accommodate your sleeping needs! Your feedback is very important to us and appreciated. If you ever have any questions for us, please call contact us at customerservice@sinomax-usa.com
New and DIFFERENT
I have purchased so many of these in the past that were really uncomfortable due to the old style egg crate shape that actually adds pressure points! Besides that design flaw, they were awful to smell for weeks on end! THIS IS NEW AND DIFFERENT! I got this in the queen and when it arrived I was happy to see the plastic was open ended so it had breathability for venting smell...but wait! NO SMELL! I got to use it straight away. PLEASANTLY surprised! Also the wave pattern was perfect for comfort with no pressure points. EXTREMELY happy with Mainstays newest toppers, they are greatly improved! This is SO SO soft!
Thank you for your review! We are very happy to hear that you are enjoying your purchase of the Mainstays 1.5-inch Memory Foam Mattress Topper and pleased that you choose us to accommodate your sleeping needs! Your feedback is very important to us and appreciated. If you ever have any questions for us, please call contact us at customerservice@sinomax-usa.com
Easy to put on- Feels GREAT!
Our Mainstays memory foam mattress topper is the best! It's 1.5 inches, but I think it seems bigger than that. The topper is not super heavy so even with a king sized bed, it wasn't hard to put on. It fits perfectly, no overlap or short sides. I had a mattress topper once that had an odor- but not this one! It didn't have any odor that I noticed. It does make the bed feel cooler, and we sleep so well! It came nicely boxed, and poofs out once you lay it on the bed. I like the 3 year warranty too, although I can't imagine having to need it. My ankles bother me on regular beds, but this memory topper really helps my ankles, and my whole body feel better in bed. I think you'll enjoy it- and it would make a nice gift as well.
Thank you for your review! We are very happy to hear that you are enjoying your purchase of the Mainstays 1.5-inch Memory Foam Mattress Topper and pleased that you choose us to accommodate your sleeping needs! Your feedback is very important to us and appreciated. If you ever have any questions for us, please call contact us at customerservice@sinomax-usa.com
