Generic illustration · not a product photograph

Serenity RV Mattress — Copper-Infused Comfort

Name: SleeperKing Serenity RV Mattress — Copper-Infused Comfort
Brand: SleeperKing

Best for: Fits a 70″ × 74″ RV king

An 11″ pocket-coil RV mattress and the only SleeperKing model in a 70″ × 74″ size, plus 48″ × 74″, 60″ × 74″ and 66″ × 80″.

Good to know: The seller calls 70″ × 74″ an "RV Custom" size; measure your platform first.

Type: Hybrid
Height: 11″
Sizes: 11 ready-made

Your size

66 × 80 in · 11″ tall

Where to get it

sleeperkingmattress.comQueen $740 (sale, was $1,480) · checked Oct 28 See price

Returns: 120 nights 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

Fits a 70″ × 74″ RV king

Good

An 11″ pocket-coil RV mattress and the only SleeperKing model in a 70″ × 74″ size, plus 48″ × 74″, 60″ × 74″ and 66″ × 80″.
Trial: 120 nights
Height: 11″
Sizes: 38 x 74 - RV Standard Twin, 54 x 74 - RV Standard Full, 48 x 74 - RV Full, 60 x 80 - RV Queen, 60 x 74 - RV Short Queen, 66 x 80 - RV Olympic Queen, 72 x 80 - RV King, 72 x 74 - RV Short King, 72 x 84 - RV California King, 38 x 80 - RV Twin XL, 70 x 74 - RV Custom

Think about

The seller calls 70″ × 74″ an "RV Custom" size; measure your platform first.
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 naming this model were collected.

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 collected Sample: 0 owner reports.

Owner comments were not searched beyond the seller's site; any star ratings on the seller's site are brand-hosted and not used.

Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.

Every size it comes in

Olympic queen66 × 80 in11″RV king72 × 80 in11″Short full48 × 74 in11″Short queen · 74-inch60 × 74 in11″Short RV king (70 × 74)70 × 74 in11″Twin XL38 × 80 in11″Queen60 × 80 in11″California king72 × 84 in11″38 x 74 - RV Standard Twin38 × 74 inAs listed 54 x 74 - RV Standard Full54 × 74 inAs listed 72 x 74 - RV Short King72 × 74 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.

How it compares

Beside the most similar mattresses from other brands.

	Serenity RV Mattress — Copper-Infused ComfortSleeperKing	CopperFlex RV HybridBrooklyn Bedding	Adventure Max – Luxury (Hybrid)Mattress Insider	Scarsdale Luxury Hybrid (9″)Mattress Insider
Type	Hybrid	Hybrid	Hybrid	Hybrid
Queen price	$740	$799	$990	$869
Height	11″	10″	10.5″ or 11.5″	9″
Trial	120 nights	365 nights	365 nights	365 nights
Odd sizes	5	15	20	18
Expert reviews	None yet	None yet	None yet	None yet

What’s inside

1Quilted cool-to-the-touch cover
2Gel-enhanced comfort foam
3Copper-infused lumbar layer
41,000 comfort coils

Feel: Not published
Height: 11″
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 king · 72 × 80

Short full · 48 × 74

Short queen · 74-inch · 60 × 74

Short RV king (70 × 74) · 70 × 74

Returns and ordering

Trial and returns

120 nights

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?

An 11″ RV hybrid made by Spring Air for SleeperKing in the USA: 1,000 comfort coils with a copper-infused lumbar layer, gel-enhanced comfort foam, a quilted cool-to-the-touch cover and reinforced handles. Ships roll-packed.

How firm is it?

Not published That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

11 sizes, 11″. 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. Owner comments were not searched beyond the seller's site; any star ratings on the seller's site are brand-hosted and not used.

Where did this information come from?