SweetNight CoolNest® Ultra Memory Foam Mattress

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Images: SweetNight. Shown size and configuration may vary.

SweetNight

CoolNest® Ultra Memory Foam Mattress

Name: SweetNight CoolNest® Ultra Memory Foam Mattress
Brand: SweetNight

Best for: Plushest CoolNest foam

The 12″ is Medium; the 14″ and 16″ are Medium Plush, all with 7-zone support.

Good to know: Queen and King only.

Type: Memory foam
Height: 12″ or 14″ or 16″
Sizes: 2 ready-made
Certified: CertiPUR-US, OEKO-TEX Standard 100 (cover fabric)

Pick it if

You sleep on your side
You’re a heavier person
You share the bed

Skip it if

You’re on the lighter side

From independent reviewers’ findings, credited below.

Your size

60 × 80 in · 12″ or 14″ or 16″ tall

Where to get it

sweetnight.comQueen $729.99 (sale, was $919.99) · checked Oct 17 See price
For heavier peopleReviewers: 16-inch version cradled heavier side sleepers with steady support See the list

Returns: 100 nights (sweetnight.com purchases); at least 30 nights before an opened return, return within 100 days of delivery; free return 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

Plushest CoolNest foam

Good

The 12″ is Medium; the 14″ and 16″ are Medium Plush, all with 7-zone support.
2 firmness choices: Medium (12″), Medium Plush (14″ and 16″)
Trial: 100 nights (sweetnight.com purchases); at least 30 nights before an opened return, return within 100 days of delivery; free return
Height: 12″ or 14″ or 16″

Think about

Queen and King only.
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.

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

RTINGS (Oct 2026): Medium all-foam bed that cradled average and heavier side sleepers well but left lighter side sleepers with pressure points. Support was steady across weights, it felt especially cool when first lying down, and edges compressed evenly despite no reinforcement. The transition layer is lower-density foam, a durability weak spot. Tested about 15.7″ tall (the 16″ version); affiliate commissions disclosed on page. Read it ↗
NapLab (Sep 2026): Tested as a medium feel with strong pressure relief, low motion transfer and quick foam response. Testers felt slight heat build-up, and edge support was only fair to good. Tested the 16″ version; feel may differ in the 12″ and 14″; commission links disclosed on page. Read it ↗
Sleep Foundation (Sep 2026): Testers tried all three heights. Side sleepers under 230 lb liked how it cradled hips and shoulders, and motion isolation was excellent, but the taller, softer versions gave too much for back and stomach sleeping. It measured cooler than the average foam bed, though one tester still felt some warmth. Covers the 12″, 14″ and 16″ versions, which differ in firmness; affiliate commissions 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 opened. Sample: 0 owner reports.

Owner feedback was not researched in this pass; only the seller's own pages were read.

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

Every size it comes in

Queen60 × 80 in12″ or 14″ or 16″King76 × 80 in12″ or 14″ or 16″

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 26, 2026. Prices change often, so check before you buy.

Size	Inches	Price
Queen	60 × 80	From $730 sale	See it
King	76 × 80	From $780 sale	See it

How it compares

Beside the most similar mattresses from other brands.

	CoolNest® Ultra Memory Foam MattressSweetNight	OriginalBear	Pro FoamBear	Cooling Collection Memory FoamBedStory
Type	Memory foam	Memory foam	Memory foam	Memory foam
Queen price	$730	$699	$999	$700
Height	12″ or 14″ or 16″	10″	12″	12″ or 13″ or 14″
Trial	100 nights	365 nights	365 nights	365 nights
Odd sizes	None	None	None	None
Expert reviews	3	4	1	None yet

What’s inside

1Gradient cooling ice silk cover
2PCMflux® high-resilience foam (2× PCM)
3AirMesh™ breathable memory foam
4Ventilated gel memory foam
57-zone wavy-cut ergonomic support foam
6Enhanced stability high-density support foam
7Anti-slip dotted fabric base

Feel: Medium (12″), Medium Plush (14″ and 16″)
Height: 12″ or 14″ or 16″
Custom sizes: Not offered for this model

Returns and ordering

Trial and returns

100 nights (sweetnight.com purchases); at least 30 nights before an opened return, return within 100 days of delivery; free return

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?

SweetNight's top all-foam bed: ice-silk cover, double-PCM high-resilience foam, AirMesh breathable memory foam and ventilated gel memory foam over a wavy-cut 7-zone support foam and a stability foam.

How firm is it?

Medium (12″), Medium Plush (14″ and 16″) That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

2 sizes, 12″ or 14″ or 16″. 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 feedback was not researched in this pass; only the seller's own pages were read.

Where did this information come from?

Checked 2026-10-17. Specs and terms can change.