Grbsy Mattress sits in the budget-friendly, bed-in-a-box lane, leaning into cooling gel memory foam and a medium-firm hybrid with pocketed coils. In our evaluations, the strengths were a cool-to-the-touch cover feel on the foam models and a more buoyant, easier-to-move-on surface on the hybrid. The main trade-offs were firmness tolerance (especially for lighter side sleepers) and “average, not elite” edge stability.
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| CoolNest Firm | 4.1/5.0 | Strong support, cool feel, low noise | Too firm for some, modest bounce | Back/stomach sleepers, heavier bodies |
| CoolNest Medium Firm | 4.3/5.0 | Balanced feel, better pressure relief, cool cover | Edge sit can compress, foam “hug” | Combo sleepers, mixed positions |
| CoolNest Dual Firmness | 4.2/5.0 | Couple-friendly feel options, stable midline | Split feel not for everyone, limited spring | Partners with different firmness needs |
| EcoNest Hybrid | 4.4/5.0 | Easier turning, stronger edges, good airflow | Slightly more movement felt | Active sleepers, couples who want bounce |
Final Verdict
CoolNest Firm
- Who It’s For: back sleepers needing lift; stomach sleepers wanting flatter hips; heavier sleepers who dislike deep sink
- Who It’s Not For: lightweight side sleepers; anyone craving a springy feel; people who want a plush top layer
CoolNest Medium Firm
- Who It’s For: combo sleepers; average-weight back/side sleepers; people who want contouring without “mushy” feel
- Who It’s Not For: dedicated stomach sleepers who need extra firmness; sleepers who hate any foam hug; edge loungers who sit a lot
CoolNest Dual Firmness
- Who It’s For: couples with different firmness needs; restless sleepers changing positions; partners who want one mattress solution
- Who It’s Not For: sleepers sensitive to uneven feel; anyone wanting uniform firmness; people who prefer high bounce
EcoNest Hybrid
- Who It’s For: sleepers who rotate positions; couples wanting easier movement; those who prefer a more lifted surface
- Who It’s Not For: ultra-light sleepers needing very plush foam; people who want maximum “dead quiet” feel; anyone who dislikes coil responsiveness
Grbsy Mattress Comparison Chart
| Item | CoolNest Firm | CoolNest Medium Firm | CoolNest Dual Firmness | EcoNest Hybrid |
|---|---|---|---|---|
| Type | All-foam | All-foam | All-foam (split feel) | Hybrid |
| Feel | Firm | Medium firm | Split firm | Medium firm |
| Thickness seen | 14" | 14" | 12" | 14" |
| Cover | IceSilk | IceSilk | IceSilk (removable) | Cotton |
| Cooling design | Cool-touch + gel foam | Cool-touch + gel foam | Cool-touch + gel foam | Coil airflow + foam |
| Support character | Very stable | Balanced | Stable with “two-feel” zones | Buoyant + supportive |
| Motion isolation | Strong | Strong | Strong | Good (not max) |
| Responsiveness | Low-moderate | Moderate | Moderate | High |
| Edge support | Average | Average | Average | Better |
How We Tested It
We rotated each mattress through the same routine: full-night sleep blocks, short evening “wind-down” sessions, and early-morning edge and posture checks. We scored Support, Cooling, Pressure Relief, Motion Isolation, Responsiveness, Edge Support, and Durability using consistent in-room conditions and repeatable movements (rolls, sit-to-stand, and position changes). Jenna and Ethan handled partner disturbance checks, while Marcus focused on heat buildup and hip support under a heavier load.
Grbsy Mattress: Our Testing Experience
CoolNest Firm
Our Testing Experience
The first thing I noticed was how “level” my hips stayed when I started the night on my back—less of that slow settling that can irritate my lower back after desk-heavy days. Marcus immediately called out the cooler surface feel early on, and he liked that the support didn’t sag under his midsection when he drifted onto his stomach. Jenna and Ethan agreed it stayed quiet and steady when one of them got up, but Jenna also flagged that the edge compressed when she perched to put on socks.
- What we liked:
- Strong lumbar and hip support
- Cool-to-touch initial feel
- Low motion disturbance
- Who it is best for:
- Back sleepers wanting a firmer plane
- Stomach sleepers needing flatter hips
- Heavier sleepers avoiding “hammock” sink
- Where it falls short:
- Pressure relief can feel limited on the side
- Less “bounce” for quick turns
- Edge sit support is only average
Pros & Cons
| Pros | Cons |
|---|---|
| Firm, stable support | Too firm for some side sleepers |
| Cool cover feel | Limited springy response |
| Low motion transfer | Edge perch compresses |
Details
- Model name: CoolNest
- Type: gel-foam / memory-foam construction
- Firmness: Firm
- Thickness options noted: 12" and 14"
- Cover material: Ice Silk
- Fill materials listed: gel memory foam, memory foam, high density foam
- Mattress-in-a-box setup (vacuum-compressed, expansion time noted)
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.6 | Firm, steady, especially under hips |
| Cooling | 4.2 | Cool cover feel, decent heat control |
| Pressure Relief | 3.7 | Can feel “pushy” on shoulders/hips |
| Motion Isolation | 4.5 | Movement stays localized |
| Responsiveness | 3.4 | Foam rebound is moderate |
| Edge Support | 3.6 | Fine for sleeping near edge, weaker for sitting |
| Durability | 4.1 | Simple foam stack, stable feel over weeks |
| Overall | 4.1 | Best for firm-support seekers |
CoolNest Medium Firm
Our Testing Experience
This one felt like the “middle path” in the lineup. When I started on my side, my shoulder sank in more naturally, and when I rolled to my back, I still felt enough lift under the lumbar area to avoid that morning tightness. Marcus liked it more than I expected—he still wanted firmer, but he admitted it didn’t collapse under his hips the way softer foams can. Jenna and Ethan found it calm and quiet at night, though Ethan noted that fast turns took a moment longer than on a springy bed.
- What we liked:
- More forgiving pressure relief
- Still supportive under the midsection
- Quiet surface with low partner disruption
- Who it is best for:
- Combo sleepers switching positions
- Average-weight back/side sleepers
- People who want contouring without “mush”
- Where it falls short:
- Not firm enough for strict stomach sleepers
- Foam feel can feel “clingy” to some
- Edge sitting support remains average
Pros & Cons
| Pros | Cons |
|---|---|
| Balanced support and give | Not ideal for strict stomach sleeping |
| Better shoulder/hip relief | Foam hug can feel restrictive |
| Strong motion isolation | Edge sitting compresses |
Details
- Type: gel memory foam
- Firmness: Medium firm (6.5/10 noted)
- Thickness: 14"
- Cooling system described: IceSilk cover + gel foam + airflow layer
- Ergonomic zoning described: 7-zone design
- Mattress-in-a-box delivery described
- Size options referenced in listing (multiple standard sizes, incl. Short Queen)
- Fiberglass-free inner liner and certifications referenced
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.3 | Good lift without feeling hard |
| Cooling | 4.3 | Cool-touch cover feel helps early-night comfort |
| Pressure Relief | 4.2 | Better shoulder/hip compliance than Firm |
| Motion Isolation | 4.5 | Partner movement stays muted |
| Responsiveness | 3.6 | Easier than Firm, still foam-forward |
| Edge Support | 3.6 | Similar edge behavior to Firm |
| Durability | 4.0 | Holds shape well in normal use |
| Overall | 4.3 | Most balanced all-foam option |
CoolNest Dual Firmness
Our Testing Experience
This is the one Jenna and Ethan gravitated toward first because it’s explicitly built for partners who don’t agree on feel. The split design gave them a clean “my side / your side” setup, and the immediate benefit was fewer compromise conversations. In the middle of the night, Ethan’s position changes were less disruptive than on the hybrid, and Jenna liked that she could stay stable near her edge without feeling pulled toward the center. For me, the biggest tell was how the mattress encouraged consistency: I stopped chasing the perfect position and just stayed put longer.
- What we liked:
- Couple-friendly firmness solution
- Strong motion isolation for restless sleepers
- Clear, predictable support on each side
- Who it is best for:
- Couples with different firmness needs
- Restless sleepers who change positions
- People who want foam quietness
- Where it falls short:
- Split feel may bother sensitive sleepers
- Less uniform than a single-feel mattress
- Still not a “bouncy” surface
Pros & Cons
| Pros | Cons |
|---|---|
| Dual-feel approach for couples | Split feel isn’t for everyone |
| Low motion transfer | Limited bounce |
| Stable foam support | Edge sit support remains moderate |
Details
- Product positioning: dual firmness for couples
- Firmness description shown: Split Firm
- Thickness shown (example): 12"
- Construction described: cooling gel memory foam
- Cover described: Ice Silk, removable, fiberglass-free
- Mattress-in-a-box delivery described in listings
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.3 | Stable foam support on both feels |
| Cooling | 4.2 | Cool-touch cover effect carries over |
| Pressure Relief | 4.0 | Better than Firm, not as “melty” as plush foam |
| Motion Isolation | 4.6 | Strong for couples and light sleepers |
| Responsiveness | 3.6 | Foam rebound, not springy |
| Edge Support | 3.7 | Slightly better than expected, still mid-pack |
| Durability | 4.0 | Consistent feel across weeks |
| Overall | 4.2 | Best if you need two feels in one mattress |
EcoNest Hybrid
Our Testing Experience
After the all-foam models, EcoNest immediately felt more “alive.” I could roll from side to back without that slow foam drag, and morning sit-to-stand was easier because the edge held up better. Marcus appreciated the extra lift under his hips, especially when he started on his stomach—he described it as less of a “platform” and more of a guided support. Jenna and Ethan still found it couple-friendly, but they could feel a touch more movement compared to the foam beds. The trade felt worth it for how much easier it was to change positions without effort.
- What we liked:
- Easier movement and repositioning
- Better edge stability for sitting
- A more lifted, supportive feel
- Who it is best for:
- Combo sleepers who toss and turn
- Couples who want bounce plus support
- People who dislike deep foam sink
- Where it falls short:
- Slightly more motion transfer than all-foam
- Less “hug” for pressure-sensitive shoulders
- Coil feel is not for everyone
Pros & Cons
| Pros | Cons |
|---|---|
| Responsive hybrid feel | Not as isolating as foam |
| Better edge support | Less contouring “hug” |
| Balanced support | Some may notice coil character |
Details
- Model name: EcoNest
- Construction type: Hybrid
- Coil type: Pocketed coil
- Top style: Euro Top
- Firmness: Medium Firm
- Cover material: Cotton
- Fill material listed: Gel memory foam
- Thickness shown (example): 14"
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.4 | Lifted support with coil stability |
| Cooling | 4.2 | Airflow helps, cover feel less “cold” than IceSilk |
| Pressure Relief | 4.0 | Good, but not as cushy as softer foams |
| Motion Isolation | 4.0 | Solid for a hybrid, not “foam quiet” |
| Responsiveness | 4.5 | Noticeably easier turning |
| Edge Support | 4.3 | Stronger edge behavior in daily use |
| Durability | 4.2 | Hybrid structure feels robust |
| Overall | 4.4 | Best all-around for active sleepers |
Compare Performance Scores of These Mattresses
| Mattress | Overall Score | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness |
|---|---|---|---|---|---|---|---|
| CoolNest Firm | 4.1 | 4.6 | 3.7 | 4.2 | 4.5 | 4.1 | 3.4 |
| CoolNest Medium Firm | 4.3 | 4.3 | 4.2 | 4.3 | 4.5 | 4.0 | 3.6 |
| CoolNest Dual Firmness | 4.2 | 4.3 | 4.0 | 4.2 | 4.6 | 4.0 | 3.6 |
| EcoNest Hybrid | 4.4 | 4.4 | 4.0 | 4.2 | 4.0 | 4.2 | 4.5 |
The most even performer is EcoNest Hybrid: no weak category, with its biggest advantage in Responsiveness and Edge Support. CoolNest Firm is the most polarized—excellent Support and Motion Isolation, but clearly weaker on Pressure Relief for side sleepers. CoolNest Dual Firmness has the strongest Motion Isolation profile, while CoolNest Medium Firm is the safest “one mattress for most people” pick.
How to Choose the Grbsy Mattress?
Start with sleep position and how sensitive you are to firmness. If you’re mostly on your back or stomach (or you’re heavier and want less sink), go firmer. If you rotate positions, choose the most balanced feel. If you share a bed and disagree on comfort, prioritize a couple solution over chasing perfect specs.
- Lightweight side sleepers: CoolNest Medium Firm (more shoulder give)
- Heavier back/stomach sleepers: CoolNest Firm (more lift)
- Couples with different firmness preferences: CoolNest Dual Firmness (less compromise)
- Active combo sleepers: EcoNest Hybrid (easier turning and edge stability)
Limitations
- CoolNest Firm:
- Too firm for many side sleepers
- Limited bounce
- Average edge perch
- CoolNest Medium Firm:
- Not firm enough for strict stomach sleep
- Foam hug feel
- Average edge perch
- CoolNest Dual Firmness:
- Split feel can distract
- Less uniform surface
- Not springy
- EcoNest Hybrid:
- More motion than foam
- Less “hug” contour
- Coil feel isn’t universal
Grbsy Mattress Vs. Alternatives
- Why choose these models:
- Cooling-focused covers and foams
- Strong motion control on all-foam options
- A couple-friendly dual-feel option
- Hybrid option for easier movement
- Alternatives to consider:
- Nectar Classic Hybrid: for a mainstream hybrid feel and broader brand familiarity
- Novilla gel memory foam options: for simple, value-focused foam comfort
- Ashley Chime Hybrid: for a widely available entry hybrid profile
Pro Tips for Grbsy Mattress
- Give any boxed mattress adequate expansion time before judging firmness.
- Pair firmer foam with a slightly plusher pillow to reduce neck “tilt.”
- If you’re a side sleeper on a firmer model, add a thin, breathable topper instead of replacing the bed immediately.
- Use a stretch-knit protector to preserve the cooling feel without “plastic” heat trapping.
- For foam models, rotate the mattress periodically to even out wear in your most-used zone.
- For couples, test motion isolation with your real routine: one person gets in/out, the other stays still.
- If you sit on the edge daily, prioritize the hybrid (or use a bench) to reduce long-term edge stress.
- Keep sheets breathable; heavy flannel can erase most cooling benefits.
- For dual-feel designs, agree on which side each partner uses and stick with it for a full week before swapping.
- Re-check alignment after a week: the first night feel can differ from “week two” comfort.
FAQs
Does the firm CoolNest feel too hard for side sleeping?
If you’re a dedicated side sleeper, it can feel pushy at the shoulder and outer hip. The Medium Firm version is usually the safer choice for pressure relief.
Which Grbsy option is best for couples?
If you want the quietest, lowest-disturbance feel, the all-foam models win. If you need two different comfort feels in one bed, the Dual Firmness model is the most practical.
Is the hybrid noticeably bouncier than the foam models?
Yes. EcoNest Hybrid is easier for turning and repositioning, while the foam models feel calmer and more “absorbing” under movement.
What’s the easiest way to improve cooling on these mattresses?
Use breathable sheets, keep the protector thin and stretch-knit, and avoid heavy bedding that traps heat at the surface.
