Avenco SleepSphere 8 Inch Twin Mattress, Twin Size Mattresses with Innerspring for Pressure Relief, Foam and Spring Hybrid Colchones Breathable Cover CertiPUR-US Certified Bed Mattress in a Box
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FREE 90-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Wednesday, Aug 26
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Size: Twin
Set name: 8''
Features
- Engineered for Deep Sleep: This twin size mattress features innerspring technology delivering precision point-to-point support. Comfort foam layer evenly distributes pressure, relaxing every muscle. Wake up refreshed and energized after truly restorative deep sleep on Avenco twin mattress
- Innerspring Support System: Innerspring Coils in this twin size mattress provide targeted support that adapts to body contours. High-durability springs respond independently to pressure changes, ensuring your twin mattress delivers consistent comfort and support for years
- Breathable 3D Fabric Cover: The twin size mattress features 3D breathable knitted fabric that actively circulates air, wicking away heat and moisture all night. Stay cool and comfortable for extended deep sleep. Avenco twin mattress remains fresh and dry even after hours of rest
- Reinforced 3D Edge Support: Advanced 3D edge wrap technology surrounds this twin size mattress with reinforced border support that prevents sagging and deformation. Sit comfortably on the edge without sinking. Maximizes usable sleep surface while enhancing durability of your twin mattress
- Even Weight Distribution: The innerspring system in this twin size mattress evenly distributes your body weight across the entire sleep surface. Whether you turn or change positions at night, the mattress maintains consistent stability and comfort, helping you stay deeply asleep
Brand: Avenco
Size: Twin
Product Dimensions: 75"L x 39"W x 8"Th
Item Weight: 34.7 pounds
Item Firmness Description: Medium
Top Style: Tight Top
Cover Material: Breathable 3D Fabric Cover
Number of Layers: 2
Fill Material: Comfort Foam
Special Feature: Breathable, Durable, Hypoallergenic, Pressure Relief
Item Firmness Description: Medium
Number of Layers: 2
Additional Features: Breathable, Durable, Hypoallergenic, Pressure Relief
Mattress Coil Type: Bonnell Coil
Construction Type: Hybrid
Size: Twin
Item Dimensions L x W x Thickness: 75"L x 39"W x 8"Th
Item Weight: 34.7 pounds
Item Thickness: 8 inches
Item Depth: 8 inches
Item Dimensions: 75 x 39 x 8 inches
Cover Material: Breathable 3D Fabric Cover
Fill Material: Comfort Foam
Mattress Comfort Layer Material: Comfort Foam
Material Type: Foam, Innerspring
top-style: Tight Top
Color: White
Brand Name: Avenco
Model Name: AOMSP33SER
Product Benefits: Back Pain Relief, Hypoallergenic, Improves Sleep, Stress Relief
Model Number: AOMSP33SER
Number of Items: 1
Mattress Type: Standard Mattress
Number of Packs: 1
Global Trade Identification Number: 74
Manufacturer: PT Prestova Home Living Indonesia
Unit Count: 1 Count
Included Components: twin mattress
Item Type Name: Bed Mattress Conventional
Manufacturer Part Number: AOMSP338TWN1
Set Name: 8''
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 26
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: King (U.S. Standard)
Set name: 12"
Upgrading to a King-size bed has been a fantastic experience, and this mattress provides an incredible amount of space to stretch out. After testing it for a few nights, here is my honest breakdown of the product: Weight & Setup First, be aware that this mattress is quite heavy. You will definitely need two people to safely carry and maneuver it into your bedroom. However, once you get it onto the bed frame, setting it up is incredibly easy and requires no tools. I was expecting it to pop open aggressively once the seal was broken, but it actually expanded very slowly and safely. Comfort & Firmness Since this is an innerspring mattress, I fully anticipated a very stiff and firm surface. Surprisingly, it is not as hard as I expected. It actually has a plush, soft feel when you lie down on it, which turned out to be extremely comfortable for me. The bright white quilted top (as shown in my photo, image.png) looks very clean, and the fabric feels highly breathable, keeping the bed comfortable throughout the night. Minor Drawback The only small downside I've noticed is the edge support. The very edges of the mattress are a bit on the softer side, so it sinks slightly if you sit right on the border to put on your shoes or get out of bed. Final Thoughts Overall, I am very happy with this mattress. The sheer amount of space a King provides is amazing, and the soft, comfortable surface makes for a great night's sleep. Just keep in mind that if you are looking for an ultra-firm spring mattress, this one leans more toward the softer side.
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Reviewed in the United States on August 10, 2026 by Issachar
Size: Queen (U.S. Standard)
Set name: 12"
I’ve been sleeping on this mattress for a week and more and it’s really solid. Honestly I’m surprised how much better I rest now. I usually sleep on my side, and I used to wake up with sore hips and shoulders pretty often. That hardly happens anymore. If I shift around in bed at night, I barely feel it on the other side. It also doesn’t trap heat, so I’m not sweating through the night. It showed up tightly packed in a box, and fluffed up quickly once I unrolled it. It’s not too soft and not rock hard, Good balance of soft and firm, just right. I also like knowing it uses safe materials. This is a really good buy. Overall a really good mattress for everyday use.
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Reviewed in the United States on August 13, 2026 by Leonel
Size: Queen (U.S. Standard)
Set name: 12"
I am very happy with this mattress overall! It arrived in a sturdy box and was wrapped in several layers of thick plastic, so it was well protected. After unboxing, there was no bad smell, which was a great first impression. The mattress feels solid and well made, and the pocket springs provide excellent support while distributing weight evenly. After expanding for a few days, the top became softer and much more comfortable than I expected. I don't even need a topper. I've been sleeping much better since getting it. Great quality, excellent support, and an amazing value for the price. Highly recommended！
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Reviewed in the United States on August 6, 2026 by Liz
Size: Full
Set name: 12"
This 12-inch full size hybrid mattress saves my sleep! The individually wrapped coils offer just the right support for my back, while the top memory foam layer contours gently without feeling too sinky. It arrived vacuum-sealed, expanded fully in 4 hours, and had almost no off-gassing odor. I’m a side sleeper and it keeps my hips and shoulders perfectly aligned—no more waking up sore. The edge support is surprisingly solid too, so I don’t feel like I’ll roll off when sitting on the side. For the price, it’s way better than the overpriced brand I tried before.
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Reviewed in the United States on August 15, 2026 by Mike
I realize it’s a six inch mattress, so expectations should be tempered but this is the least supportive mattress I’ve ever felt. It’s for my three year old daughter, and she tells us it’s not comfy. Forgot about an adult laying on it. You can feel every single spring and the boards below. Trying to decide if I should try to make it better with a nice topper or just cut my loses and buy a nicer mattress. Very disappointed.
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Reviewed in the United States on July 30, 2026 by Lisa B
Hm, wanted to like this, but it was very soft / unsupportive. Waited a bit to see if it would firm up, but you still really sink into it. Especially around the edges, you almost slide/fall off. I ordered avenco's tri-fold mattress before for a temporary solution, and that was good. This one's a miss for me, sadly. Will opt for a proper mattress. Since this can't be put back into the box for a return, it's sort of wasted unfortunately.
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Reviewed in the United States on July 10, 2026 by A
Size: Queen
Set name: 10 IN
3 years later and this is holding up better than my old king coil. The value is great for how well it has held up and if it isnt comfortable just get a thick mattress topper.
Reviewed in the United States on July 12, 2026 by theodore
Size: Queen (U.S. Standard)
Set name: 12"
I’m very happy with this spring mattress. It offers excellent support and feels firm yet comfortable throughout the night. One thing I really appreciate is that I hardly notice any motion when my partner moves or turns over, so my sleep is not disturbed. The mattress provides great stability, good back support, and helps me wake up feeling well rested. I would definitely recommend it to anyone looking for a supportive and comfortable mattress.
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Reviewed in the United States on August 3, 2026 by Lily