HEAD-TO-HEAD · UPDATED 2026-07-01
Spec-based scoring, dimension-by-dimension verdicts, and honest deal breakers. Total cost of ownership over 3 years included.
Get Casper Sleep if
You want the internet's #1-ranked side-sleeper hybrid — deep pillow-top over coils, made-to-order in the US.
Get Helix Midnight if
You want the more temperature-neutral, edge-supported hybrid — Casper invented the bed-in-a-box category.
Tied on
Both are medium-feel hybrids. Both target the pressure-relief buyer. Both have 100-night trials.
Six-dimension score
Buyer self-select
| If you… | Pick | Why |
|---|---|---|
| Best for side sleepers | Helix Midnight | Deeper pillow-top + more forgiving coil zone under shoulders |
| Best edge support | Casper Sleep | Firmer perimeter coils = easier to sit on the edge |
| Best cooling | Casper Sleep | AirScape foam vents better than Helix's Tencel cover |
| Best warranty | Helix Midnight | 15 years vs Casper's 10 |
| Best value | Helix Midnight | $1,899 vs $1,495 — Casper is $404 cheaper but Helix's specs justify the delta for side sleepers |
| Best if you want a personalized quiz | Helix Midnight | Helix.com 2-min quiz matches you to the right model |
Deeper pillow-top + coils optimized for side sleeping, plus 15-year warranty vs Casper's 10. Casper wins on edge support and slightly better cooling.
Deep dive
This is Helix Midnight's specific mission. 14" luxe profile, quilted memory foam pillow-top, coils zoned to firm at hips and soften at shoulders. Every major reviewer (Wirecutter, Sleep Foundation, NYT Wirecutter, RTINGS) ranks it top-3 for side sleepers.
Casper Original Hybrid is also solid for side sleepers (zoned coils, medium feel) but the pillow-top is shallower. Side sleepers with shoulder pressure issues: Helix.
Casper's AirScape foam is designed specifically for airflow — perforated foam that vents heat actively. Helix uses a breathable Tencel cover but the memory foam pillow-top traps more heat.
Not a huge gap (both sleep neutral) but if you sleep hot AND need side-sleeper pressure relief, Casper is the safer pick.
Casper's perimeter coils are firmer than Helix's, which matters for two use cases: (1) sitting on the edge to tie shoes without feeling like you'll roll off, and (2) making full use of the mattress width (some memory foam beds feel like you'll fall off the sides).
Helix has decent edge support but Casper's is notably better. Couples who use every inch of the mattress: Casper wins here.
Helix: 100-night trial, 15-year warranty. Casper: 100-night trial, 10-year warranty. Helix's 5-year longer warranty is a real signal — mattresses that will fail sag at year 8-12, so a 15-year warranty covers the risk period.
3-year all-in cost
Hardware + subscription over 36 months. Subscription-first products often win on Day 1 and lose over the lifetime.
Side by side
| Spec | Casper Sleep | Helix Midnight |
|---|---|---|
| Best price today | $1,495.00wins | $1,899.00 |
| MSRP | $1,495.00wins | $1,899.00 |
| Editor score | 8.2/10 | 8.5/10wins |
| User rating | 4.4 (8,752) | 4.7 (12,400)wins |
| Subscription | None | None |
Where to buy
Casper
Helix
People also ask
Helix Midnight, and it's not close. The deeper pillow-top + shoulder-zoned coils are specifically tuned for side sleeping. Casper is fine but Helix is the benchmark.
Casper Original Hybrid — the AirScape foam vents better than Helix's memory foam. Not a huge gap but real for hot sleepers.
Casper. Firmer perimeter coils = better for sitting on the edge and making use of the full mattress width.
Casper at $1,495 vs Helix at $1,899. Casper is $404 cheaper. For side sleepers, Helix's specs justify the delta. For combo sleepers, Casper is a great value.
Both rated for 10+ years. Helix's 15-year warranty is longer — a real signal of confidence. Casper's 10-year warranty is standard for hybrids.
Both offer 100-night trials with full refund. Helix requires 30-night minimum sleep before returning; Casper same. Both handle returns cleanly.