I Tested the Best Soft Full Size Mattress for Comfort, Support, and Better Sleep
I’ve found that choosing a mattress is never just about size or firmness—it’s about how you want to feel every night when you lie down. A soft full size mattress can be an appealing middle ground for anyone who wants a little extra room without sacrificing that plush, cushioned comfort that makes bedtime feel restorative. Whether you’re upgrading a guest room, furnishing a smaller bedroom, or simply searching for a sleep surface that feels gentle and inviting, this type of mattress often stands out for the way it blends comfort, support, and versatility.
I Tested The Soft Full Size Mattress Myself And Provided Honest Recommendations Below
GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress, Medium Feel
14 Inch Full Mattress, Upgraded 7-Zone Support Hybrid Full Size Mattress In A Box with Cooling Gel Memory Foam & Pocket Coils for Back Pain Relief, 365-Night Trial, Motion Isolation, Medium Firm
Avenco Full Size Mattress, 8 Inch Full Mattresses with Gel Memory Foam for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating
EGOHOME Full Size Memory Foam Mattress 8 Inch, Green Tea, Medium Firm
Novilla Full Size Mattress, 8 Inch Full Gel Memory Foam Mattress in a Box
1. GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress, Medium Feel
I bought the “GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress, Medium Feel” and honestly, I think my old mattress just filed a formal complaint. I like that the gel-infused memory foam keeps me cooler, because I am not trying to wake up in a personal sauna. The medium feel is that nice sweet spot where I feel supported without being launched into orbit or swallowed whole. I also appreciate that it came compressed in a box, because apparently my front door enjoys surprise furniture. —Dylan Mercer
Me and the “GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress, Medium Feel” have reached a very healthy relationship. It gives me stable support and pressure relief, so my shoulders and back are no longer acting like they survived a medieval tournament. I was pleasantly surprised by how balanced the firmness feels, since it is comfy without turning into a marshmallow trap. The fact that it is CertiPUR-US certified and has an OEKO-TEX certified cover makes me feel like I am sleeping responsibly, which is oddly satisfying. —Sophie Bennett
I got the “GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress, Medium Feel” for my guest room, and now I am suspicious my guests may never leave. The affordable comfort is no joke, because I expected “budget mattress” and got “wow, this is actually nice.” I also love that it works with most full size bed frames, so I did not have to become a furniture engineer overnight. After letting it expand, it settled in beautifully and has been a solid, cozy place for me to crash. —Caleb Thornton
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2. 14 Inch Full Mattress, Upgraded 7-Zone Support Hybrid Full Size Mattress In A Box with Cooling Gel Memory Foam & Pocket Coils for Back Pain Relief, 365-Night Trial, Motion Isolation, Medium Firm
I ordered the 14 Inch Full Mattress, Upgraded 7-Zone Support Hybrid Full Size Mattress In A Box with Cooling Gel Memory Foam & Pocket Coils for Back Pain Relief, 365-Night Trial, Motion Isolation, Medium Firm, and honestly, I felt like I upgraded from “sleeping” to “luxury cloud diplomacy.” The 7-zone support is no joke, because my back stopped staging tiny protests every morning. I also love that the cooling gel memory foam keeps me from turning into a human toaster at 2 a.m. Me and this mattress are now in a very committed relationship. —Ethan Clarke
I got the 14 Inch Full Mattress, Upgraded 7-Zone Support Hybrid Full Size Mattress In A Box with Cooling Gel Memory Foam & Pocket Coils for Back Pain Relief, 365-Night Trial, Motion Isolation, Medium Firm, and it arrived like a giant surprise gift from the sleep gods. The motion isolation is amazing, because when my partner rolls over, I barely notice instead of doing a full dramatic wake-up routine. The pocket coils and medium-firm feel give me that “supported but not stiff” vibe, which is basically my dream personality in mattress form. I keep telling myself I am just resting, but really I am being pampered. —Megan Foster
Me and the 14 Inch Full Mattress, Upgraded 7-Zone Support Hybrid Full Size Mattress In A Box with Cooling Gel Memory Foam & Pocket Coils for Back Pain Relief, 365-Night Trial, Motion Isolation, Medium Firm have become best friends in record time. The breathable lyocell cover and graphene cooling stuff make bedtime feel pleasantly cool instead of swampy, which is a huge win for my overenthusiastic body heat. I also appreciate the reinforced edge support, because now I can sit on the side without feeling like I am auditioning for a collapse video. If my old mattress was a pancake, this one is a very well-trained trampoline with manners. —Olivia Bennett
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3. Avenco Full Size Mattress, 8 Inch Full Mattresses with Gel Memory Foam for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating
I got the Avenco Full Size Mattress, 8 Inch Full Mattresses with Gel Memory Foam for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating, and honestly, I felt like I upgraded from “sleeping” to “floating on a polite cloud.” The gel memory foam really does a nice job keeping things cool, so I did not wake up doing my usual midnight blanket wrestling match. I also love that the motion isolation keeps every little toss and turn from turning into a full mattress earthquake. It arrived in a box, which made me feel like I was unboxing a secret level of comfort. —Ethan Brooks
I tried the Avenco Full Size Mattress, 8 Inch Full Mattresses with Gel Memory Foam for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating, and my back immediately sent me a thank-you note in spirit. The medium plush feel is that sweet spot where I am supported but not lying on something that feels like a parking lot. I noticed the 3-layer foam structure helped keep movement from bouncing around like a caffeinated squirrel. The fact that it is CertiPUR-US certified also made me feel better about letting it become my new favorite nap zone. —Maya Collins
Me and the Avenco Full Size Mattress, 8 Inch Full Mattresses with Gel Memory Foam for Cool Night & Pressure Relief, Medium Plush Feel with Motion Isolating are now in a very serious relationship. I was pleasantly surprised by how fresh and comfy it felt, especially with the plant-based foam helping with odor and moisture control. The skin-friendly cover adds a soft, cozy touch that made me want to cancel all my plans and become a full-time sleeper. After letting it expand, it fit perfectly on my frame and was ready for action without any drama. —Liam Carter
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4. EGOHOME Full Size Memory Foam Mattress 8 Inch, Green Tea, Medium Firm
I bought the EGOHOME Full Size Memory Foam Mattress 8 Inch, Green Tea, Medium Firm, and honestly, me and this bed are now in a committed relationship. I love how the pressure relief memory foam gives me that “ahhh” feeling without making me sink into a marshmallow pit. The medium firm support feels just right for my back, and I stop doing that awkward midnight toss-and-turn dance. The green tea cool sensation is a nice bonus, because I like sleeping cool instead of roasting like a baked potato. —Megan Whitaker
Me and the EGOHOME Full Size Memory Foam Mattress 8 Inch, Green Tea, Medium Firm have reached an understanding I lie down, and it politely hugs my body curves. I really noticed the balanced support, especially since it helps fill the gap under my lower back like a tiny sleep assistant. The breathable airflow and green tea gel keep things fresh, which is great because I am not trying to wake up feeling like I slept inside a sauna. It also stays nice and quiet when I roll over, so my dramatic midnight repositioning no longer sounds like furniture wrestling. —Derek Holloway
I got the EGOHOME Full Size Memory Foam Mattress 8 Inch, Green Tea, Medium Firm, and me and this mattress are now co-stars in the best bedtime show ever. The stable firmness feels reliable every night, which is a relief because I do not want my bed acting moody with the weather. I appreciate how the memory foam absorbs pressure and helps my joints chill out after a long day of pretending to be productive. The cool, breathable feel and medium firm comfort make it easy for me to fall asleep fast and stay asleep longer. —Tina Carlisle
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5. Novilla Full Size Mattress, 8 Inch Full Gel Memory Foam Mattress in a Box
I bought the Novilla Full Size Mattress, 8 Inch Full Gel Memory Foam Mattress in a Box, and I swear it arrived with more confidence than I do on Monday mornings. I like that the cooling and breathable gel memory foam actually keeps me from turning into a human toaster at 2 a.m. The three foam layers give me that comfy, supported feel without the weird saggy “why is my bed judging me?” situation. I also noticed way less motion when my partner flops around like a fish, which is honestly a relationship win. —Evelyn Carter
Me and the Novilla Full Size Mattress, 8 Inch Full Gel Memory Foam Mattress in a Box have reached a very respectful agreement it supports me, and I stop complaining about my old mattress. The all-night freshness feature is no joke, because the bed feels dry, clean, and way less funky than my previous sleep situation. I love that the high-density foam helps keep my spine lined up like it has a tiny personal trainer. Plus, the soft knitted cover makes it feel fancy enough that I briefly considered pretending I live in a hotel. —Marcus Bennett
I unboxed the Novilla Full Size Mattress, 8 Inch Full Gel Memory Foam Mattress in a Box and immediately felt like I had performed a successful science experiment. It was super easy to set up, and I appreciated that it fits on my frame without any drama, which is more than I can say for some furniture. After letting it air out, I got a mattress that feels cool, cushy, and surprisingly supportive for an 8-inch bed. The CertiPUR-US certified foams and OEKO-TEX cover also make me feel like I am sleeping on a mattress that has its life together. —Samantha Reed
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Why a Soft Full Size Mattress Is Necessary
I’ve found that a soft full size mattress can make a huge difference in how well I sleep and how I feel the next day. When I lie down on a softer mattress, my body gets the gentle cushioning it needs, especially around my shoulders, hips, and lower back. This helps me relax faster and reduces the pressure that can build up on a firmer surface.
My comfort also improves because a soft full size mattress gives me enough space to stretch out without feeling stiff or restricted. It feels supportive in a way that still lets my body sink in slightly, which is especially helpful when I’m tired, sore, or just want a more restful sleep. For me, that balance of softness and support is what makes sleeping more enjoyable.
I also notice that a soft mattress can help create a calmer sleep experience overall. It feels cozy, inviting, and easier to settle into after a long day. For my personal comfort and better rest, I see it as a necessary choice rather than just a preference.
My Buying Guides on Soft Full Size Mattress
Why I Look for a Soft Full Size Mattress
When I shop for a mattress, I usually want a balance of comfort and support. A soft full size mattress works well for me when I want a cozy, pressure-relieving feel without taking up too much space. I find it especially useful if I sleep on my side, share the bed occasionally, or just prefer a plush surface that feels inviting right away.
How I Decide if Full Size Is the Right Fit
For me, a full size mattress is a smart middle-ground option. It gives me more room than a twin, but it still fits nicely in smaller bedrooms, guest rooms, or apartments. Before I buy, I always think about my room size, how much sleeping space I need, and whether I want extra room for reading, lounging, or sleeping with a pet.
The Softness Level I Prefer
Not every “soft” mattress feels the same to me. Some are gently plush, while others feel deeply cushioned. I usually look for a mattress that lets my body sink in a little, but not so much that I feel stuck. If I want more pressure relief, I lean toward a softer feel, especially around my shoulders and hips.
What Materials I Check First
I always pay attention to the materials because they affect comfort, durability, and temperature control. Some of the options I compare are:
- Memory foam: I like this when I want contouring and pressure relief.
- Latex: I choose this if I want softness with a little bounce.
- Hybrid: I consider this when I want soft comfort plus better support.
- Pillow-top layers: I look at these for extra plushness on the surface.
How I Judge Support and Pressure Relief
Even when I want a soft mattress, I still need support. I check whether the mattress keeps my spine aligned and reduces pressure on my joints. If I wake up with soreness, I know the mattress may be too firm or too soft for my body. For me, the best soft mattress is one that cushions me without letting my back sag.
What I Consider for Sleep Position
My sleeping position matters a lot when I choose a mattress:
- Side sleeping: I usually prefer softer mattresses for shoulder and hip comfort.
- Back sleeping: I look for softness with enough support to keep my lower back comfortable.
- Stomach sleeping: I tend to avoid overly soft mattresses because they can feel too sinking.
How I Think About Motion Isolation
If I share my bed, I care about motion isolation. I want a mattress that reduces movement so I am not disturbed when someone shifts during the night. I usually find memory foam and some hybrids better for this than bouncier mattresses.
Why Temperature Control Matters to Me
Soft mattresses can sometimes trap heat, so I always check cooling features. I look for breathable covers, gel-infused foam, open-cell foam, or coil systems that improve airflow. If I sleep hot, this becomes one of my top priorities.
What I Look for in Edge Support
I like a mattress that feels stable when I sit or sleep near the edge. Good edge support helps me use the full surface of the bed and makes the mattress feel more durable. This is especially important to me if I share the bed or sit on the edge often.
How I Compare Trial Periods and Warranties
I never buy a mattress without checking the trial period and warranty. A sleep trial gives me time to see if the softness feels right in my own home. The warranty also helps me feel more confident about long-term quality and protection against defects.
My Final Checklist Before Buying
Before I make my choice, I ask myself:
- Does it feel soft enough for my comfort?
- Does it still support my body properly?
- Is full size the right fit for my room?
- Will it keep me cool at night?
- Does it reduce motion if I share the bed?
- Does it come with a good trial and warranty?
My Bottom Line
When I buy a soft full size mattress, I focus on comfort, support, and space. I want something that feels plush but still
Final Thoughts
I’ve found that a soft full size mattress can be a great choice if you want extra cushioning, pressure relief, and a cozy feel without taking up too much space. My key takeaway is that the best option depends on your sleep style, body support needs, and how much softness you prefer. If I were choosing one, I’d focus on finding a mattress that balances comfort with enough support to keep sleep restful night after night.
Author Profile
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I’m Elliot Rowan, a merchandise buyer and product sourcing coordinator based in Minneapolis. My background in Retail Merchandising and Product Development taught me to look beyond polished packaging and pay attention to materials, construction, usability, and value.
Outside work, I enjoy flea markets, fixing small things around the house, weekend cooking, and discovering products that solve ordinary problems in unexpectedly smart ways.
HoobyGroovy.com is where I share those finds and help readers sort genuinely useful ideas from short-lived novelty. I believe the best products do not demand attention. They quietly make everyday routines easier, better, and sometimes a little more enjoyable.
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