12″ Kingship Comfort Superior Mattress · Brand walkthrough
Kingship Comfort Superior Mattress Review
Rest Right Mattress · YouTube ↗
1 / 1Images: Rest Right Mattress. Shown size and configuration may vary.
12″ Kingship Comfort Superior Mattress
Best for: Firmness choice, odd sizes
A 12″ foam bed in soft, medium or firm, made in Wyoming King, Split Wyoming King, Olympic Queen, European King and Queen XL as well as standard sizes.
Good to know: Mattress sales are final once shipped.
- Type
- Foam
- Height
- 12″
- Sizes
- 12 ready-made
- Certified
- CertiPUR-US
66 × 80 in · 12″ tall
Where to get it
- restrightmattress.comQueen $1,050 (sale, was $1,450) · checked Oct 18 See price
- Split kingSplit California King (Includes Both Sides) See the list
Returns: None. 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
- Firmness choice, odd sizes
Good
- A 12″ foam bed in soft, medium or firm, made in Wyoming King, Split Wyoming King, Olympic Queen, European King and Queen XL as well as standard sizes.
- 3 firmness choices: Soft, Medium, Firm
- Trial: None. All mattress sales final; no returns or cancellation once shipped
- Height: 12″
Think about
- Mattress sales are final once shipped.
- No owner reviews we could verify yet
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.
No independent owner reviews were found for this model.
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.
Sources & sample limits
none found Sample: 0 owner reports.
Searched Reddit, Trustpilot (no page for restrightmattress.com) and GoodBed; nothing on Rest Right or Kingship Comfort. Reviews on restrightmattress.com product pages are brand-hosted.
Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.
What owners report
Owners on the maker's site often bought hard-to-find sizes (Wyoming King, split queen, split Wyoming King with a different firmness per side) to pair with adjustable bases; one replaced a Tempur-Pedic. Most comments praise service and value; little long-term durability detail.
Owners like
- Wyoming and split sizes
- Different firmness per side
- Value
From Rest Right Mattress product reviews (seller’s site). Summarized in our words.
Every size it comes in
Olympic queen66 × 80 in12″RV bunk (30 × 80)30 × 80 in12″Bunk (36 × 84)36 × 84 in12″Wyoming king84 × 84 in12″Full XL · 54-inch54 × 80 in12″Twin XL38 × 80 in12″Full · 54-inch54 × 75 in12″King76 × 80 in12″California king72 × 84 in12″Queen XL (60 × 84)60 × 84 inAs listedSplit Wyoming King (2) (42 × 84)42 × 84 inAs listedEuropean King (63 × 79)63 × 79 inAs listed
Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it. Sizes marked “as listed” don’t exactly match a standard size, so check your frame.
Price for every size
From the maker’s site on Oct 24, 2026. Prices change often, so check before you buy.
| Size | Inches | Price | |
|---|---|---|---|
| Split Queen (2-30" x 80") | 30 × 80 | $1,310 sale | See it |
| Twin | 38 × 75 | $850 sale | See it |
| Split California King (Includes Both Sides) | 36 × 84 | $1,280 sale | See it |
| Twin XL | 38 × 80 | $860 sale | See it |
| Split Wyoming King (2) (42" x 84") | 42 × 84 | $1,700 sale | See it |
| Full | 54 × 75 | $1,030 sale | See it |
| Full XL (54" x 80") | 54 × 80 | $1,040 sale | See it |
| Queen | 60 × 80 | $1,050 sale | See it |
| European King (63" X 79") | 63 × 79 | $1,030 sale | See it |
| Queen XL (60" x 84") | 60 × 84 | $1,210 | See it |
| Olympic Queen (66" x 80") | 66 × 80 | $1,030 sale | See it |
| California King | 72 × 84 | $1,280 sale | See it |
| King | 76 × 80 | $1,260 sale | See it |
| Wyoming King (84" x 84") | 84 × 84 | $1,450 sale | See it |
Video reviews
How it compares
Beside the most similar mattresses from other brands.
| 12″ Kingship Comfort Superior MattressRest Right Mattress | CopperFlex EssentialBrooklyn Bedding | Plank FirmBrooklyn Bedding | Adventure PlusMattress Insider | |
|---|---|---|---|---|
| Type | Foam | Memory foam | Foam | Memory foam |
| Queen price | $1,050 | $799 | $1,332 | $693 |
| Height | 12″ | 6″ or 8″ or 10″ or 12″ or 14″ | 10″ | 9.75″ |
| Trial | See terms | 365 nights | 365 nights | 365 nights |
| Odd sizes | 5 | 16 | 8 | 13 |
| Expert reviews | None yet | None yet | 4 | None yet |
What’s inside
- 1Gray 8-way stretch flat cover
- 2Graphene-infused cooling foam (thickness not published)
- 3Superior Gel Technology gel foam (thickness not published)
- 41.5″ high-density polyurethane
- 57.5″ high-density support foam
- Feel
- Soft, Medium, Firm
- Height
- 12″
- Custom sizes
- Not offered for this model
Complete the bed
Odd sizes need everything else in the same inches. Here’s what we have for this mattress’s odd sizes.
Olympic queen · 66 × 80
RV bunk (30 × 80) · 30 × 80
Bunk (36 × 84) · 36 × 84
Wyoming king · 84 × 84
Full XL · 54-inch · 54 × 80
Returns and ordering
Trial and returns
None. All mattress sales final; no returns or cancellation once shipped
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?
All-foam mattress with a flat gray 8-way stretch cover made for adjustable bases: graphene-infused cooling foam, Superior Gel Technology cooling gel foam, a 1.5″ high-density polyurethane transition layer and a 7.5″ high-density support layer. CertiPUR-US foam, made in the USA.
How firm is it?
Soft, Medium, Firm That’s the maker’s description; we haven’t measured it.
Which sizes and heights can I get?
12 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. Searched Reddit, Trustpilot (no page for restrightmattress.com) and GoodBed; nothing on Rest Right or Kingship Comfort. Reviews on restrightmattress.com product pages are brand-hosted.
Where did this information come from?
Checked 2026-10-18. Specs and terms can change.
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