Signature 12″ Memory Foam · Review
Siena Signature 12" Review - Fantastic Performance; Budget Price
NapLab · YouTube ↗
1 / 1Images: Siena. Shown size and configuration may vary.
Signature 12″ Memory Foam
Best for: Thicker budget foam
A 12″ five-layer memory foam bed.
Good to know: 180-night trial and 10-year warranty.
- Type
- Memory foam
- Height
- 12″
- Sizes
- 6 ready-made
- Certified
- CertiPUR-US
Firmness, according to reviewersMedium firm
Pick it if
- You sit on the edge or use all of it
Skip it if
- Your partner moves a lot
From independent reviewers’ findings, credited below.
38 × 75 in · 12″ tall
Where to get it
- sienasleep.comQueen $379 · checked Oct 16 See price
- Split kingSplit King See the list
Returns: 180 nights from delivery; an opened mattress can be returned no earlier than 30 days after delivery Details
We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.
The short version
Worth a look if
- Thicker budget foam
Good
- A 12″ five-layer memory foam bed.
- Trial: 180 nights from delivery; an opened mattress can be returned no earlier than 30 days after delivery
- Height: 12″
- Sizes: Twin, Twin XL, Full, Queen, King, Cal King, Split King
Think about
- 180-night trial and 10-year warranty.
- No owner reviews we could verify yet
- Standard sizes only: no RV, odd or custom sizes listed
Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.
What owners say
No owner reviews we can verify yet A small set of real reviews, each linked to its source. Not a star rating.
Owner feedback was not researched in this pass.
What people liked
No supported praise summary in the sample.
What to weigh up
No substantive concern verified in this small sample. This is a gap in the evidence, not proof of no drawbacks.
What independent reviewers found
- NapLab (May 2026): Medium-firm with limited sink and noticeable pushback. Edges were very sturdy sitting and lying, the foam responded quickly and off-gassing cleared in about four days. Testers felt slight heat build-up, pressure relief was decent, and motion transfer was somewhat above average. Tested the 2025 re-release of the 12″; commission links disclosed on page. Read it ↗
Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.
Sources & sample limits
No owner sources reviewed for this model. Sample: 0 owner reports.
Spec-and-size pass only; owner feedback (Reddit, forums) still to be gathered.
Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.
Every size it comes in
Twin38 × 75 in12″Twin XL38 × 80 in12″Full · 54-inch54 × 75 in12″Queen60 × 80 in12″King76 × 80 in12″California king72 × 84 in12″
Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it.
Price for every size
From the maker’s site on Oct 24, 2026. Prices change often, so check before you buy.
Video reviews
How it compares
Beside the most similar mattresses from other brands.
| Signature 12″ Memory FoamSiena | Black Foam 12″EGOHOME | Black Foam 12″ ProEGOHOME | Black Foam 14″EGOHOME | |
|---|---|---|---|---|
| Type | Memory foam | Memory foam | Memory foam | Memory foam |
| Queen price | $379 | $379 | $419 | $499 |
| Height | 12″ | 12″ | 12″ | 14″ |
| Trial | 180 nights | 100 nights | 100 nights | 100 nights |
| Odd sizes | None | None | None | None |
| Expert reviews | 1 | 2 | None yet | 3 |
What’s inside
- 1Five layers, including 2″ of contouring memory foam.
- Feel
- Medium (cushioned)
- Height
- 12″
- Custom sizes
- Not offered for this model
Returns and ordering
Trial and returns
180 nights from delivery; an opened mattress can be returned no earlier than 30 days after delivery
Before you order
- Measure inside the frame, not the old mattress
- Check clearance above for the height you pick
- Make sure your base supports it
- Buy sheets in the same exact size
Questions
What is it made of?
Five layers, including 2″ of contouring memory foam.
How firm is it?
Medium (cushioned) That’s the maker’s description; we haven’t measured it.
Which sizes and heights can I get?
6 sizes, 12″. See every size. Confirm your exact size and height with the seller.
Are the reviews about this exact mattress?
No owner reviews we can verify yet. Spec-and-size pass only; owner feedback (Reddit, forums) still to be gathered.
Where did this information come from?
Checked 2026-10-16. Specs and terms can change.
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