Density really does matter in a mattress topper. I have many, many different toppers of different densities and my favorite, by far, is the 4lb topper from Foam Factory. They can send you sample cubes ofwhatever you like and at least you can feel the difference in “squishiness” between them. The 4lb has some heft to it and feels much more supportive than the 2.5lb and something like Serene foam. I also had a Viscosoft topper, and that, at 3.5lb density was way, way too firm for me, but I weigh 132 and am a side sleeper. It was an excellent quality topper, and I can see it working for a lot of people. Answer from Reasonable-Fact-7871 on reddit.com
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Amazon
amazon.ca › Memory-Mattress-Topper-Pillow-Pocket › dp › B0CT2KXKCF
4 Inch Memory Foam Mattress Topper Queen Size, Dual Layer Mattress Pad,2 Inch Gel Memory Foam Plus 2 Inch Pillow Top Cover with 8-21 Inch Deep Pocket : Amazon.ca: Home
4 Inch Memory Foam Mattress Topper Queen Size, Dual Layer Mattress Pad,2 Inch Gel Memory Foam Plus 2 Inch Pillow Top Cover with 8-21 Inch Deep Pocket : Amazon.ca: Home
4 Inch Memory Foam Mattress Topper Queen Size, Dual Layer Mattress Pad,2 Inch Gel Memory Foam Plus 2 Inch Pillow Top Cover with 8-21 Inch Deep Pocket : Amazon.ca: Home
(4.3)
Price   $117.90
Discussions

3 inch vs 4 inch mattress topper?
Density really does matter in a mattress topper. I have many, many different toppers of different densities and my favorite, by far, is the 4lb topper from Foam Factory. They can send you sample cubes ofwhatever you like and at least you can feel the difference in “squishiness” between them. The 4lb has some heft to it and feels much more supportive than the 2.5lb and something like Serene foam. I also had a Viscosoft topper, and that, at 3.5lb density was way, way too firm for me, but I weigh 132 and am a side sleeper. It was an excellent quality topper, and I can see it working for a lot of people. More on reddit.com
🌐 r/Mattress
14
11
April 7, 2023
I want to get a 3 to 4 inch queen foam mattress topper and cut it to fit in the bed of my truck. Any suggestions on brand or specific topper?
A lot of people have gone the cheap route and gotten something off of Amazon(personally got the linenspa brand one from Amazon). The only thing I would suggest is make sure you have a floor liner to take care of moisture if it’s going to be enclosed in a topper or in a rooftop tent More on reddit.com
🌐 r/overland
2
7
April 16, 2023
[Give] Queen sized 4" foam bed topper
Put me in please! More on reddit.com
🌐 r/PDXBuyNothing
37
20
October 10, 2024
Lucid: Gel memory foam 4” mattress topper
I’ve had the same topper for a few years, maybe three, and yes is is very thick. But didn’t plump up over 4 inches. I’m able to fit both my mattress and topper in my mattress protector. Barely fits because the topper is so thick. Haven’t had any problems except that I’m not heavy enough for the thickness so I kind of just float on the topper lol. More on reddit.com
🌐 r/Mattress
5
4
November 4, 2020
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Reddit
reddit.com › r/mattress › 3 inch vs 4 inch mattress topper?
r/Mattress on Reddit: 3 inch vs 4 inch mattress topper?
April 7, 2023 -

I have decided to purchase a memory foam mattress topper to help support me when I sleep (I'm about 230-240 lbs and a side or back sleeper with some back problems).

Although my mattress was comfortable when I first bought it I just need something to help distribute my weight evenly so I don't wake up with sore hips.

I've read conflicting things about topper depth. Some people say that 3 inches isn't going to be supportive for long enough for someone heavier. And other people have said that 4 inches "folds like a taco" when you sleep on it and you can't move.

Anyone have any experience or insight to add. I don't mind having to flip/rotate it every so often and replace it in a couple of years. I'd prefer that to being unable to sleep comfortably right off the bat. But I want to make sure it will support my back and hips.

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The Home Depot
homedepot.com › p › StyleWell-4-in-Gel-Infused-Memory-Foam-Queen-Mattress-Topper-THD-MFVT-4Q › 311639790
StyleWell 4 in. Gel Infused Memory Foam Queen Mattress Topper THD-MFVT-4Q - The Home Depot
StyleWell 4 in. Gel Infused Memory Foam Queen Mattress Topper THD-MFVT-4Q
Get a good night's rest with this StyleWell 4-in. memory foam topper. To produce maximum airflow, it offers a ventilated design. It conforms to your body for pressure point relief and individualized support. The 4-in. thick gel-infused memory foam creates more comfort while you sleep.
(4.0)
Price   US$105.00
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Best Buy Canada
bestbuy.ca › en-ca › category › mattress-toppers › 35423
Mattress Toppers: Memory Foam, Gel, Orthopedic | Best Buy Canada
Get enhanced comfort when you sleep with a mattress topper from Best Buy Canada. Shop our range of foam toppers available in king, queen, single & other sizes.
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Foam Factory
canada.foambymail.com › product › 4lb-memory-foam-topper.html
4LB Memory Foam Mattress Topper | Foam Factory, Inc. - Canada
I received the king size 3" thick 4 LB Visco PLUSH Memory Foam Topper - Blue. I let it expand for two days as per instructions. I removed the 2" thick 2.5 pound memory foam topper from my 10 year old mattress. The new mattress topper width was perfect but it was about three inches longer making making it very difficult to install in the mattress bag.
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Wayfair Canada
wayfair.ca › bed & bath › bedding essentials › mattress pads & toppers
4 Inch Queen Mattress Topper
A secure 6–18 inch deep-pocket skirt keeps the topper in place, and the entire topper is machine-washable for easy care and long-lasting freshness. The BEDLORE 2” bamboo pillow top and 2” memory foam mattress top combine to equal a total of 4” of double layering that feels absolutely great when you lay down on it.
Find elsewhere
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Forest River Forums
forestriverforums.com › forest river | community forums › general community discussions
4" GelFoam Mattress Pads $99 | Forest River Forums
March 29, 2015 - Maxhise, I'm new to owning a camper, ... for a memory foam topper for our camper. Are you saying our hybrid queen bed is a different size than the queen bed in our house? ... The mattress pad is about 4" longer than the camper mattress, same width. Cut it easily with a carpet knife or let it roll over the head end. ... 4" GelFoam Mattress Pads $99 Some RVs come with a short queen bed - same width as home but shorter in length A home queen is 60 wide x 80 inches long An electric ...
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Amazon
amazon.ca › s
Amazon.ca: 4 Inch Hard Memory Foam Mattress Topper Queen Size Firm
Amazon's Choicefor "4 inch hard memory foam mattress topper queen size firm" Options:4 sizes · 4.54.5 out of 5 stars (924) Save 12% Price, product page$184.99$184.99 Was: $209.99 · Was: $209.99$209.99 · Lowest price in 30 days · FREE delivery Jan 2 - 5 ·
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Amazon
amazon.ca › memory-foam-mattress-topper › s
Amazon.ca: Memory Foam Mattress Topper
Check each product page for other buying options. Price and other details may vary based on product size and colour · Memory Foam Mattress Topper Queen, 3 Inch Cooling Gel Memory Foam Mattress Topper with Removable & Washable Bamboo Cover for Back Pain and Pressure Relief (60"x80") · Premium ...
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IKEA
ikea.com › products › beds & mattresses › mattresses
Mattress Toppers – Pillow Top for Mattresses - IKEA CA
Increase the comfort of your bed while also helping improve its longevity by adding a memory foam mattress topper. Designed to fit perfectly on top of your mattress, our memory foam mattress pads are available in twin, double, queen and king sizes.
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GhostBed
ghostbed.ca › products › mattress-topper
CertiPUR-US® Cooling Gel Memory Foam Topper
GhostBed Memory Foam Topper
Instantly improve your comfort with the GhostBed Mattress Topper, designed with CertiPUR-US® gel memory foam. Includes a waterproof, breathable cover. Free shipping!
(4.8)
Price   $279.00
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Walmart
walmart.ca › furniture › mattresses › mattress toppers
Mattress Topper | Walmart Canada
edxEDX Queen Size Memory Foam Mattress Toppers, Bed Topper Pad Cooling Gel Infused Soft Comfy Padding Breathable for Sleeper Sofa Couch RV Camper, CertiPUR-US Certified, 3 Inch Thick
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Purple
purple.com › mattress-topper
Mattress topper | Purple
Ease pain and sleep better with a Purple Mattress engineered for pressure relief and all-night comfort. Free delivery, easy returns, 100-night trial.
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Sleep Number
sleepnumber.com › home › bedding
Mattress Toppers & Pads | Sleep Number | Sleep Number
ComfortFit™ mattress layer · sale price:$199.99 - $329.99 · Rating: 4.8 /5rating stars(3891) reviews · Quick shop · ResponseFit™ Memory Foam mattress layer · sale price:$249.99 - $429.99 · Rating: 4.7 /5rating stars(607) reviews · Quick shop · Total Encasement mattress cover ·
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Amazon
amazon.com › Best-Sellers-Mattresses-Toppers › zgbs › home-garden › 8521807011
Amazon Best Sellers: Best Mattresses Toppers
VALUXE Twin XL Mattress Topper 3 Inch Cooling Gel Memory Foam, CertiPUR-US Certified Topper & Pad for Back Pain Relief, Soft Breathable Bedding with Pressure Relief (Blue) ... Sleep Innovations Dual Layer 4 Inch Memory Foam Mattress Topper, King Size, Ultra Soft Support, 3 Inch Cooling Gel ...
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Tempur-Pedic
tempurpedic.com › other-products › s › mattress-topper
Mattress Topper | Tempur-Pedic Products & Accessories | Tempur-Pedic
TEMPUR-Adapt® Topper
Instantly upgrade any mattress with 3" of extra-soft TEMPUR-Material™ with adaptive pressure relieving technology.
(4.4)
Price   US$399.00
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Tempur-Pedic
tempurpedic.com › other-products › tempur-toppers
TEMPUR-Toppers | Tempur-Pedic
TEMPUR-Adapt® Topper - CA King
Instantly upgrade any mattress with 3" of extra-soft TEMPUR-Material™ with adaptive pressure relieving technology.
(4.4)
Price   US$399.00