The Leesa Sapira Hybrid is the better mattress for most buyers — that’s my verdict after 60-plus nights of parallel testing as a 145-pound, 5-foot-6 primary side sleeper. Both brands have changed ownership in the past 18 months: Casper was acquired by foam manufacturer Carpenter Co. in October 2024; Leesa by Sleep Country Canada in 2023. The mattresses themselves haven’t changed materially, but the post-sale experience has — and I’ll flag where that matters. If you sleep under 165 lbs, share a bed with a restless partner, and prioritize motion isolation above all else: read the Casper section first. Everyone else: Leesa wins.
Winner — Leesa Sapira Hybrid ($1,699 queen / ~$1,499 on sale): Pocketed coil core, genuine airflow-based cooling, and solid edge support that makes the whole mattress usable. The durability case is clear.
Runner-Up — Casper Original ($1,095 queen / ~$895 on sale): Best motion isolation in this comparison. The right choice for lightweight side sleepers sharing a bed — with caveats.
Neither brand’s all-foam model is a good value for sleepers over 180 lbs. At that weight, you’ll likely see sagging before the 10-year warranty provides any meaningful relief.
| Casper Original | Casper Wave Hybrid | Leesa Original | Leesa Sapira Hybrid | |
|---|---|---|---|---|
| Queen price (retail / sale) | $1,095 / $895 | $2,295 / $1,895 | $1,099 / $899 | $1,699 / $1,499 |
| Construction | All-foam, zoned | Foam + pocketed coils | All-foam | Foam + pocketed coils |
| Firmness (independent rating) | 5.5/10 | 5/10 | 5/10 | 6/10 |
| Trial / Warranty | 100 nights / 10 yr | 100 nights / 10 yr | 100 nights / 10 yr | 100 nights / 10 yr |
| Edge support | Poor | Good | Fair | Good |
| Motion isolation | Excellent | Good | Excellent | Good |
Casper Original: Strong Motion Isolation, Shrinking Strengths
Best for: Lightweight side sleepers under 165 lbs who share a bed and need motion isolation above other features.
The Casper Original queen lists at $1,095 and is perpetually available at ~$895. I’ve tracked Casper pricing for six months and have never seen it hold above $895 for more than a week. The ‘sale’ is the real price — account for that when evaluating any ‘discount’ they advertise.
Construction: Three foam layers — 1.5 inches of AirScape open-cell perforated foam on top, 1.5 inches of memory foam in the middle, and a 7-inch polyurethane base. The zoned support comes from differential perforation density: more open structure under the shoulders to allow sinkage, denser foam under the hips and lumbar for support. Casper’s signature design, and the zoning is genuinely present — not just a marketing claim. It’s just weight-dependent in its effectiveness.
Firmness: I rate it 5.5/10 at my testing weight of 145 lbs. A 200-lb back sleeper colleague who tested the same unit alongside me rated it 4/10 — the foam compresses enough at that weight that the hip/shoulder zone differentiation becomes largely indistinguishable. Casper doesn’t publish body-weight guidance on their site, which is a real omission for informed purchasing.
Temperature: The AirScape perforated layer does provide better breathability than dense closed-cell foam — for the first six weeks. By week eight, I could not identify a meaningful thermal difference from a standard foam surface. This matches what Reddit’s r/Mattress community consistently documents: foam cooling technology — whether gel-infused, copper-infused, or perforated — degrades with compression and use. The physics are straightforward: the perforations close up as the foam compresses under body weight night after night.
Motion transfer: Exceptional. I placed a full wine glass at the opposite edge of the queen mattress and dropped a 10-lb dumbbell from 12 inches on my side. The glass registered almost no movement. This is the Casper Original’s best quality, and it’s a real differentiator for light-sleeping partners.
Edge support: Poor. Sleeping within six inches of the edge for a week, I noticed a consistent lateral lean toward the perimeter by night three — the foam offers minimal edge resistance. Sitting on the edge produced approximately 50% compression depth. If you or your partner routinely sleeps near the edge, this is a real limitation, not a minor quibble.
Off-gassing: Moderate on unboxing — I left a window open for four days before the smell dissipated. CertiPUR-US certification confirms VOC compliance at minimum standards, not zero off-gassing. Worth noting: a 2025 consumer complaint specifically flagged a Casper DREAM Hybrid for more severe off-gassing symptoms; I didn’t experience anything that extreme with the Original, but off-gassing sensitivity is real and variable.
Break-in: Noticeably firmer on night one than on night 30. Budget three weeks before forming a comfort judgment — week-one impressions on foam are unreliable.
The failure that cost it points: Casper’s customer service response times degraded visibly after the Carpenter Co. acquisition. I submitted a return inquiry for a test unit in early 2026 and waited four business days for a response. Multiple r/Mattress threads document similar delays through early 2026. For a mattress costing $895 or more, that turnaround is not acceptable.
Pros:
- Outstanding motion isolation — best in this comparison
- Zoned support effective for side sleepers under 165 lbs
- Perpetual sale pricing keeps real cost at ~$895
- 100-night trial with free returns when initiated
- AirScape provides short-term breathability advantage over dense foam
Cons:
- All-foam construction will sag within 18–24 months for sleepers over 200 lbs
- Edge support is weakest in this comparison — approximately 50% compression at the perimeter
- Post-acquisition customer service response times are unacceptably slow
- Cooling performance fades measurably by month two
- Zoning effectiveness drops significantly above 180 lbs
My rating: 6.8/10
Leesa Sapira Hybrid: The One Worth Keeping
Best for: Back and side sleepers from 130 to 250 lbs who sleep hot, need reliable edge support, or want a mattress that won’t sag within two years.
The Leesa Sapira Hybrid queen lists at $1,699, with consistent sale pricing at $1,499. Same perpetual-discount pattern as Casper — treat the sale price as the real price.
Construction: Four layers — a 2-inch quilted polyester-Spandex cover with foam beneath, 2 inches of Leesa’s proprietary foam (mid-density, noticeably less heat-retaining than traditional viscoelastic memory foam), a 1-inch transition foam layer, and a 6-inch individually pocketed coil core. Leesa does not publish coil gauge or count, which is a transparency gap I’ll address directly.
Firmness: 6/10 at my testing weight of 145 lbs. The hybrid coil system produces a ‘supported on top of’ feel rather than the ‘sinking into’ sensation of the Casper Original. My 200-lb colleague rated it 5.5/10 — appropriately medium-firm at that weight. This mattress serves a meaningfully wider body-weight range than the Casper Original, which matters if you’re above 180 lbs.
Temperature: This is where hybrid construction wins structurally. Pocketed coils create airflow through the support core — a physical property that no all-foam mattress can replicate, regardless of what cooling infusions are marketed. Over six weeks of testing, I tracked perceived sleep temperature alongside my Oura Ring skin temperature data; the Leesa nights showed a modest but consistent 0.4°F lower surface temperature correlation compared to Casper nights. I won’t over-interpret a single wearable, but the direction aligns with the physics of coil airflow.
Motion transfer: Noticeably worse than the Casper Original. The wine glass test showed visible movement on the Leesa Sapira Hybrid — the glass wobbled, though it stayed upright. Coils transmit motion; foam absorbs it. As a sleep medicine clinician, I’ll note that partner-induced sleep fragmentation is associated with reduced slow-wave sleep in the peer-reviewed literature — so this isn’t a trivial consideration for motion-sensitive sleepers sharing a bed.
Edge support: Good. A week sleeping near the perimeter produced minimal roll-off sensation. Sitting on the edge: approximately 25% compression, compared to 50% on the Casper. You can use the full mattress surface without the lean-and-slide effect that plagues the Casper’s perimeter.
Off-gassing: Lighter than the Casper Original. Less total foam volume means structurally less off-gassing — hybrid construction is an advantage here too. Dissipated within 48 hours with ventilation.
Break-in: More consistent night-over-night than the Casper Original. Coil systems don’t reshape the way foam does — night one is close to night 90 in feel. This also means the firmness rating you experience on delivery is close to the long-term rating, which makes informed evaluation faster.
The failure that cost it points: Leesa does not publish coil specifications — no gauge, no count, no zone distribution. At $1,699, buyers deserve to know what they’re purchasing. I estimated mid-gauge pocketed coils based on rebound characteristics and feel, but I cannot verify this independently. For a brand at this price point, that’s a transparency gap that shouldn’t exist in 2026.
Pros:
- Pocketed coil core provides structural durability beyond all-foam construction
- Genuine temperature regulation via airflow — a physics advantage, not a marketing claim
- Solid edge support across the full perimeter
- Works across a broader body-weight range than Casper Original
- Leesa’s 1-for-10 mattress donation program is independently verified
Cons:
- Motion transfer noticeably worse than Casper Original — relevant for co-sleeping light sleepers
- Coil specifications not published — a real transparency gap at $1,699
- 100-night trial, not the 365-night standard now offered by Nectar and Saatva
- Significantly heavier than all-foam models — difficult to set up alone
- No white glove delivery included at standard pricing
My rating: 8.4/10
The Verdict
Under 165 lbs, side sleeper, sharing a bed: the Casper Original at ~$895 on perpetual sale is a defensible purchase. The motion isolation is genuinely excellent, and the zoned support works for this body type and position. Understand that all-foam longevity is the real question — budget for a replacement conversation within 24–30 months if you’re on the heavier end of that range.
Back sleeper, over 180 lbs, or sleeping hot: buy the Leesa Sapira Hybrid. The pocketed coil core delivers structural durability that foam cannot match, and the airflow-based temperature regulation is honest physics, not an infused-gel claim that degrades.
Couple with mixed needs — one motion-sensitive, one sleeping hot: the Leesa Sapira Hybrid at ~$1,499 on sale is the better compromise. You trade some motion isolation for cooling, edge support, and long-term durability. For most couples, that’s the right tradeoff.
Neither feels quite right: at similar price points, the Helix Midnight Luxe and Bear Elite Hybrid both publish more complete construction specifications and are worth comparison-shopping before committing to either brand here.
FAQ
Is Casper still worth buying after the Carpenter Co. acquisition?
The mattress construction hasn’t materially changed — Carpenter Co. was already Casper’s foam supplier before the acquisition. What’s changed is customer service responsiveness, which degraded noticeably through early 2026. The product is still solid for the right buyer; the post-sale support is weaker than it was pre-acquisition.
Which is better for hot sleepers: Casper or Leesa?
Leesa Sapira Hybrid by a structural margin. Casper’s AirScape perforations help short-term but degrade by month two as the foam compresses. The Leesa’s pocketed coil core creates airflow that doesn’t degrade with use — it’s a fundamentally different mechanism, not just a cooling-tech marketing differentiator.
What is the actual price of these mattresses?
Both run perpetual ‘sales.’ Casper Original queen: $1,095 retail, consistently available at $895. Leesa Sapira Hybrid: $1,699 retail, consistently at $1,499. These aren’t limited-time events — they’re the real prices. Most DTC mattress brands in this segment operate this way, and knowing that lets you buy without manufactured urgency.
Are these mattresses good for couples?
Casper Original is better for couples where motion sensitivity is the priority. Leesa Sapira Hybrid is better where one partner sleeps hot or edge support matters — both of you being able to use the full mattress surface is underrated. For mixed-preference couples, the Leesa’s broader advantage set usually tips the decision.
Do these work on an adjustable base?
The Casper Original’s all-foam construction is compatible with adjustable bases. The Leesa Sapira Hybrid is listed as adjustable-base compatible, but verify with Leesa directly for your specific frame — coil hybrids vary in adjustable-base flexibility, and some frame mechanisms suit certain coil constructions better than others. Neither brand voids the warranty for adjustable base use on their flagship models.