Skip to main content
Affiliate Disclosure: SleepRanked earns commissions when you purchase through links on this page, at no extra cost to you. This does not influence our rankings or recommendations. Learn more

Beautyrest Harmony Lux Carbon Medium Pillow Top vs Casper Dream

Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.

Beautyrest Harmony Lux Carbon Medium Pillow Top mattress
Beautyrest
Harmony Lux Carbon Medium Pillow Top
$1,149
$1,399 MSRP
Queen
Check Today's Price →
📧 Get notified when this price drops
or
We only contact you about this product. One alert, then we stop.
Casper Dream mattress
Casper
Dream
$1,325
$1,895 MSRP
Queen
Check Today's Price →
📧 Get notified when this price drops
or
We only contact you about this product. One alert, then we stop.
Feature
Beautyrest
Harmony Lux Carbon Medium Pillow Top
Casper
Dream
Overview
Type
HybridHybrid
Firmness
1 = softest, 10 = firmest
5.5 / 105.5 / 10
Queen Price
Current / sale price
$1,149$1,325
Trial Period
Return window
100 nights100 nights
Warranty
10 years10 years
Performance Ratings
Cooling
Hot sleepers
HighGood
Motion Isolation
Partners, light sleepers
ExcellentGood
Pressure Relief
Hip/shoulder pain
GoodGood
Edge Support
Sit/sleep near edge
GoodGood
Durability
Long-term performance
GoodGood
Compatibility & Features
Adjustable Base
Head/foot elevation
✓ Yes✓ Yes
Split King Support
Two Twin XL per couple
✓ Yes✓ Yes
Dual Comfort Zones
Different firmness per side
Smart Features
App, sensors, auto-adjust
Financing
AffirmAffirm
Materials & Safety
Certifications
Organic / non-toxic
CertiPUR-US, SEAQUALCertiPUR-US
Off-Gassing
New-foam smell concern
CertiPUR-US certified foamCertiPUR-US certified foam
Best For
Ideal sleeper profiles
  • Couples / light sleepers
  • Adjustable base users
  • Organic / non-toxic priority
  • Trial-period conscious shoppers
  • Split King setup
  • Adjustable base users
  • Organic / non-toxic priority
  • Trial-period conscious shoppers
Actions
Our Pick

Need Help Deciding?

For most sleepers, we recommend the Casper Dream over the Beautyrest Harmony Lux Carbon Medium Pillow Top. It scores higher in cooling and delivers stronger overall value. The Beautyrest Harmony Lux Carbon Medium Pillow Top is the better choice only if you have a strong preference for that brand's specific feel or design.

Still deciding? Take our 2-minute mattress quiz →

Beautyrest Harmony Lux Carbon Medium Pillow Top vs Casper Dream: What Actually Differs

Both the Beautyrest Harmony Lux Carbon Medium Pillow Top and Casper Dream are hybrid mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Beautyrest Harmony Lux Carbon Medium Pillow Top stands 15.75" tall versus 12" for the Casper Dream — a 3.8" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 5.5/10 on the firmness scale — a medium feel — so neither one is the answer if you need a dramatically different support level. The single largest performance gap is in motion isolation: the Beautyrest Harmony Lux Carbon Medium Pillow Top rates noticeably higher than the Casper Dream, which is the deciding factor if that dimension is high on your list. On a Queen, the Beautyrest Harmony Lux Carbon Medium Pillow Top runs $1,149 versus $1,325 for the Casper Dream — roughly $176 (13%) less, which is enough to factor into the decision unless the pricier model wins clearly on the specs you care about.

Which Is Better For Your Sleep Style?

Side sleepers
Either works

Both rate the same for pressure relief — choose on firmness instead (side sleepers usually prefer the softer of the two: Casper Dream at 5.5/10).

Back sleepers
Either works

Both fall in the medium-firm zone back sleepers prefer (5.5/10 vs 5.5/10) — either works.

Stomach sleepers
Either works

Effectively the same firmness (5.5/10 vs 5.5/10). Stomach sleepers generally want 7+/10 — neither is ideal if both rate lower.

Hot sleepers
Spec not available

Cooling rating not available for one or both mattresses — spec not available.

Heavier sleepers (230+ lb)
Either works

Durability and edge-support ratings are equivalent — either holds up.

Lighter sleepers (under 150 lb)
Either works

Both have similar firmness and pressure-relief profile — either works.

Couples / light sleepers
Beautyrest Harmony Lux Carbon Medium Pillow Top

Higher motion-isolation rating, which means less disturbance when a partner moves or gets out of bed.

Price Comparison (Queen)

MattressMSRPCurrentSale?
Beautyrest Harmony Lux Carbon Medium Pillow Top$1,399$1,149Save $250
Casper Dream$1,895$1,325Save $570

The Beautyrest Harmony Lux Carbon Medium Pillow Top is the budget choice at $1,149$176 less than the Casper Dream ($1,325). That's a 13% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Both are currently below MSRP.

Beautyrest Harmony Lux Carbon Medium Pillow Top

Strengths

  • Captured Beautyrest PDP copy published 40% more coils and more pressure-relieving foam than Harmony models
  • InfiniCool Lux adds two layers of active cooling
  • T2 Pocketed Coil system supports motion isolation
  • 100% USA assembled statement was published on the captured manufacturer page

Considerations

  • Beautyrest now redirects the product URL to the mattress collection page
  • Inventory should be treated as clearance/legacy rather than current core assortment
  • Split King and Split King Dual were not sold on the captured manufacturer PDP

Casper Dream

Strengths

  • Zoned memory foam over encased springs
  • More bounce and edge support than The One
  • QuickCool cover upgrade path is published on the PDP

Considerations

  • Standard Cozy Cover is not the cooling upgrade
  • Medium feel may be less plush than Dream Max
  • Higher Queen price than Casper's foam models

Who Should Buy Which?

Choose the Beautyrest Harmony Lux Carbon Medium Pillow Top if you…

  • Couples / light sleepers
  • Budget-conscious shoppers
  • Organic / non-toxic priority shoppers
Check Beautyrest Price ↗

Choose the Casper Dream if you…

  • Hot sleepers
Check Casper Price ↗

Beautyrest Harmony Lux Carbon Medium Pillow Top

Try a Different Comparison

Loading mattress selector…