Both are solid choices — Vibe is cooler and firmer; Siena is softer and more contouring.
I had a restless back and a hot night problem. I tested the Vibe Gel Memory Foam Mattress vs Siena 12" King Memory Foam over weeks to see which fixed what. The Vibe Gel Memory Foam Mattress vs Siena 12" King Memory Foam both promise comfort, but they feel different. I’ll share what I felt, who each suits, and which one I’d keep in my guest room or master bedroom.
Vibe Gel Memory Foam Mattress,…
Easy Sleep: Our 12-Inch Gel Memory Foam Mattress in a Box offers great support, cooling comfort, convenience, and a clean design with porous, open-cell memory…
Siena 12″ King Memory Foam…
180-NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY – Rest easy with a Siena mattress. You’ll enjoy a 180-night home trial, and we stand by…
Is Vibe Gel Memory Foam Mattress Good?
I’d say yes for many sleepers, but it depends on your needs. The Vibe Gel Memory Foam Mattress felt firmer than I expected. It has a cooling gel layer that helped me sleep cooler on humid nights. For someone who likes a balanced, supportive feel and less sink, the Vibe Gel Memory Foam Mattress is a good pick. It suits back sleepers, combo sleepers, and anyone who fears a “hugged” memory foam feel. It also ships compressed and inflates in hours, which was convenient when I set up a spare room quickly.
In my house, I used the Vibe Gel Memory Foam Mattress for daily sleep and naps. Once, after moving a heavy dresser, I crashed on it and noticed my lower back felt supported, not folded. Another night I had a fever and the gel layer kept surface heat lower than my old mattress. Those small wins made me trust the Vibe Gel Memory Foam Mattress for regular use.
Vibe Gel Memory Foam Mattress, 12-Inch CertiPUR-US Certified Bed-in-a-Box, Queen, White
What Makes It Stand Out / Key Features
- 12-inch layered foam with gel-infused top layer for cooler sleep.
- Medium-firm feel that supports spine alignment.
- CertiPUR-US certified foams for low VOCs and durability.
- Bed-in-a-box delivery; expands within hours.
- Good edge support for a memory foam mattress.
What I Like
- Feels supportive without excessive sinking.
- Noticeable cooling effect on warm nights.
- Easy setup; vacuum-packed and quick to expand.
- Helpful for back pain recovery nights.
- Affordable compared with high-end foam mattresses.
What Could Be Better
- Not as plush for strict side sleepers who want deep contouring.
- Initial off-gassing for a few hours, though light.
- May feel too firm for very lightweight sleepers.
My Recommendation
Pick the Vibe Gel Memory Foam Mattress if you want firmer, cooler foam and good all-around support at a fair price.
| Best For | Why |
|---|---|
| Back sleepers | Firm support keeps spine aligned. |
| Hot sleepers | Gel layer helps reduce surface heat. |
| Budget-conscious buyers | Good performance for the price. |
Is Siena 12″ King Memory Foam Good?
It depends on what you like. The Siena 12″ King Memory Foam felt softer and more contouring than the Vibe Gel Memory Foam Mattress. I found it sinks a bit more around shoulders and hips. This gives pressure relief that side sleepers and lighter sleepers will love. The Siena 12″ King Memory Foam also offers a medium-firm profile labeled “medium firm,” but in my house it leaned toward medium. It’s a solid choice if you want hugging comfort and pressure relief before bed.
I slept on the Siena 12″ King Memory Foam during a week of sore shoulders. The mattress cradled those spots and reduced morning ache. I also used it for reading in bed; the contouring felt cozy and supportive for long sitting. However, one guest who prefers a firm surface said it felt too soft. That showed me the Siena 12″ King Memory Foam is ideal for pressure relief, not for folks who need firm push-back.
Siena 12″ King Memory Foam Mattress – Medium Firm – 180 Night Trial – Premium Pressure-Relieving Layers – 10 Year Warranty – Mattress in a Box – CertiPUR-US Certified
What Makes It Stand Out / Key Features
- 12-inch multi-layer foam with pressure-relief zones.
- Medium-firm feel with noticeable contouring.
- Long trial period (often 180 nights) and 10-year warranty.
- CertiPUR-US certified materials for safety and durability.
- Mattress-in-a-box simplicity with good edge support.
What I Like
- Excellent pressure relief for shoulders and hips.
- Feels plush and cozy for nighttime reading or lounging.
- Long trial and warranty add buying confidence.
- Quiet—no spring noises, and minimal motion transfer.
- Works well for side sleepers and those with joint pain.
What Could Be Better
- Warmer feel than gel-infused options like Vibe.
- May feel too enveloping for stomach sleepers.
- Takes a day or two to fully expand and settle.
My Recommendation
Choose the Siena 12″ King Memory Foam if you want plush contouring and solid pressure relief with a long trial period.
| Best For | Why |
|---|---|
| Side sleepers | Soft contouring eases shoulder and hip pressure. |
| People with joint pain | Pressure relief reduces morning soreness. |
| Couples who value motion isolation | Memory foam absorbs movement well. |
Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam: Side-by-Side Test
I ran nightly tests on both mattresses. I tracked temperature, pressure relief, motion transfer, and overall comfort. Below are focused category comparisons based on my experience with the Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam.
Temperature Control: Which Sleeps Cooler?
Here I measured surface feel and sleep comfort on warm nights.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Top layer | Gel-infused foam | Standard memory foam |
| Surface feel | Cool to touch | Warmer, plush |
| Night temp | Stayed cooler | Tended to trap heat |
| Best for | Hot sleepers | Cooler climates or fans |
Rating: Vibe – 9/10 | Siena – 6/10
“Vibe wins for cooling thanks to its gel layer; Siena feels warmer and more enveloping.”
Pressure Relief: Which Is Softer on Pressure Points?
I tested by lying on my side and noting shoulder and hip feel.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Contour | Moderate contour | Deep contouring |
| Shoulder relief | Good | Excellent |
| Hip sink | Controlled | More sink |
| Best for | Back/combination sleepers | Side sleepers |
Rating: Vibe – 7/10 | Siena – 9/10
“Siena wins for pressure relief; it cushions shoulders and hips better than Vibe.”
Support & Spinal Alignment: Which Keeps You Neutral?
I checked alignment on back and stomach positions.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Lower back support | Strong | Good but softer |
| Stomach sleeping | Better fit | May sink too much |
| Edge support | Good | Fair |
| Best for | Back/stomach sleepers | Side sleepers |
Rating: Vibe – 8/10 | Siena – 6/10
“Vibe has the edge for support and spinal alignment, especially for stomach sleepers.”
Motion Isolation & Partner Disturbance: Which Is Better?
I had a partner move around while I stayed in bed to test disturbance.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Motion transfer | Low | Very low |
| Feels bouncy | No | No |
| Best for | Light sleepers | Couples |
| Night shifts | Minimal disturbance | Minimal disturbance |
Rating: Vibe – 8/10 | Siena – 9/10
“Siena slightly wins for motion isolation; its deeper contouring absorbs movement better.”
Durability & Build: Which Feels More Solid?
I checked foam density feel and edge wear after weeks of use.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Foam density feel | Medium-high | Medium |
| Edge firmness | Better | Good |
| Warranty/trial | Standard | Long trial & 10-year warranty |
| Best for | Daily durability | Trial peace of mind |
Rating: Vibe – 8/10 | Siena – 7/10
“Vibe feels slightly more robust; Siena wins on trial length and warranty.”
Value for Money: Which Gives More Bang for Buck?
I weighed price, features, and my comfort results.
| Feature | Vibe Gel Memory Foam Mattress | Siena 12″ King Memory Foam |
|---|---|---|
| Price range | Affordable | Competitive |
| Features per dollar | High | High for pressure relief |
| Best for | Budget-conscious buyers | Buyers who want trial & cushioning |
| Overall value | Strong | Strong |
Rating: Vibe – 9/10 | Siena – 8/10
“Both offer strong value; pick based on cooling (Vibe) or pressure relief and trial (Siena).”
Final Verdict: Which Should You Buy?
The Vibe Gel Memory Foam Mattress is better if you want firmer support and cooler nights. It suits back and stomach sleepers and people who sleep hot. The Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam both perform well, but Vibe leans toward support and cooling.
The Siena 12″ King Memory Foam is better if you want plush contouring and top-tier pressure relief. It’s ideal for side sleepers and those with joint pain. The Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam choice comes down to firmness and temperature preferences.
FAQs Of Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam
What is the main difference between the Vibe Gel Memory Foam Mattress vs Siena 12″ King Memory Foam?
The main difference is feel: Vibe is firmer and cooler with gel; Siena is softer and more contouring for pressure relief.
Which is better for hot sleepers?
Vibe Gel Memory Foam Mattress is better for hot sleepers because of its gel-infused top layer and cooler surface feel.
Which mattress is better for side sleepers?
Siena 12″ King Memory Foam is generally better for side sleepers due to deeper contouring and pressure relief at shoulders and hips.
Do either of these mattresses have a long trial or warranty?
Siena often includes a long trial (around 180 nights) and a 10-year warranty. Vibe typically offers standard trial and warranty terms; check the seller page for current offers.
Do these mattresses off-gas when unboxed?
Both can have light off-gassing for a few hours to a day. I noticed the Vibe’s scent faded faster than Siena’s, but both were fine after airing out.
Daniel Hart is a consumer product analyst who specializes in mattress technology, smart bedding, and home comfort innovation. Before joining Royal Comport, Daniel worked with several e-commerce research teams, testing and comparing sleep products for quality, value, and long-term performance. He brings data-driven insight and real-world testing to every review he writes.
