Returns: 100 nights from delivery; returns can start after a 30-night adjustment period Details
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The short version
Worth a look if
Zoned hybrid, middle feel
Good
A 12″ hybrid with zoned foam that Casper rates medium.
Trial: 100 nights from delivery; returns can start after a 30-night adjustment period
Eight of 10 owners rated it 4-5 out of 5 for staying cool.
A 6-year stomach sleeper and a 3-6 month side sleeper rated support and sleep quality 4-5 out of 5.
Think about
Split King is listed at 76″ × 80″ in total; Casper doesn't spell out the two halves.
Six of 10 owners rated back support 2 out of 5 or lower, including two who gave it 1.
Five owners rated pressure relief 2 out of 5, and two rated sleep quality 1-2 after 3-12 months.
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
From owners of this model A small set of real reviews, each linked to its source. Not a star rating.
Small sample · 10 owner reports
Recent GoodBed owners of the Casper Dream, mostly side sleepers in their first year, rated cooling well but back support and pressure relief mostly low.
What people liked
Eight of 10 owners rated it 4-5 out of 5 for staying cool. Source ↗
A 6-year stomach sleeper and a 3-6 month side sleeper rated support and sleep quality 4-5 out of 5. Source ↗
What to weigh up
Six of 10 owners rated back support 2 out of 5 or lower, including two who gave it 1. Source ↗
Five owners rated pressure relief 2 out of 5, and two rated sleep quality 1-2 after 3-12 months. Source ↗
What independent reviewers found
Sleep Foundation(Oct 2026): Testers found a medium, well-cushioned feel that supported side sleepers up to about 230 lb; heavier back and stomach sleepers sank too far. Edges felt stable but sank getting in and out, some bounce carried to a partner, and it slept cooler than most memory foam though one tester felt warm at times. Page discloses affiliate commissions.Read it ↗
NapLab(May 2026): The reviewer found a springy, medium-firm feel with little sink, adequate support in every position, but a thin comfort layer that left pressure relief short for side and heavier sleepers. Lying near the edge was solid, sitting at the head and foot less so, cooling was strong, and the odor lasted about 8 days. Measured 11.5″ against Casper's listed 12″. Affiliate commissions disclosed; the reviewer discloses a settled 2016 lawsuit with Casper.Read it ↗
Sleepopolis(Oct 2026): Rated medium-firm (6.5/10). Best for back and combination sleepers and lighter stomach sleepers; not for strict side sleepers or people over 250 lbs. Sleeps fairly cool, decent edges, but a partner's movement is likely to be felt. Page mixes the Dream Hybrid and older Original Hybrid names, so the exact version tested is unclear. Affiliate links disclosed.Read it ↗
Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.
100 nights from delivery; returns can start after a 30-night adjustment period
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?
Hybrid: breathable polyurethane foam over zoned memory foam (firmer under hips, waist and lower back) over encased springs in a polyurethane foam base. Cozy Cover, with an optional QuickCool cover sold as a separate listing.
How firm is it?
Medium 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?
From owners of this model. Ratings only, no written comments; small sample. GoodBed does not say whether owners had the standard or QuickCool cover.