Costco’s mattress selection spans value-focused foam beds and more traditional coil builds, so you can shop by feel without getting locked into one brand. To narrow it down, we scored these picks on support, cooling, pressure relief, motion isolation, responsiveness, edge support, and durability.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
| Novaform 14” ComfortGrande Advanced Gel Memory Foam | 4.0 | Strong pressure relief Excellent motion isolation Balanced medium feel |
Edges compress under load Slower response for combo sleepers |
Side sleepers, light-to-average couples, quieter sleep setups |
| Casper Cooling Select 12" Hybrid | 4.2 | Well-rounded support Noticeable airflow and lift Good for couples who move a lot |
Some bounce carries across the surface Not as plush as deep-memory-foam fans want |
Hybrid sleepers, couples, hot sleepers wanting easier movement |
| Sealy Posturepedic Plus Ridge Crest II 14" | 4.1 | Strong midsection support feel Confident edges Easy to change positions |
Motion can travel more than foam Plush top can feel “puffy” for some |
Back/stomach sleepers, heavier bodies, edge sitters |
| Kirkland Signature by Stearns & Foster 14.5" Pillow Top Lakeridge | 4.3 | Premium, substantial build feel Stable edges Supportive with a cushioned top |
More motion than all-foam Tall profile can feel imposing on low frames |
Back sleepers, combination sleepers, couples needing edge stability |
Testing Team Takeaways
For quiet sleep and pressure relief, Novaform is the easiest recommendation. Casper Cooling Select is the most well-rounded for couples, with an even balance of cooling, support, and easy movement. If you want stronger edges and a classic springy feel, Sealy Ridge Crest II and Kirkland Lakeridge perform best—Kirkland feels like the more premium upgrade.
Costco Mattress Comparison Chart
| Comparison Item | Novaform ComfortGrande 14” | Casper Cooling Select Hybrid 12” | Sealy Ridge Crest II 14” | Kirkland S&F Lakeridge Pillow Top 14.5” |
| Type | Memory foam | Hybrid | Innerspring | Innerspring |
| Thickness | 14 in | 12 in | 14 in | 14.5 in |
| Firmness | Medium | Medium | Firm pillow top or plush pillow top | Medium |
| Available sizes | Twin, Twin XL, Full, Queen, King, Cal King | Full, Queen, King, Cal King | Full, Queen, King, Cal King | Queen, King, Cal King |
| Notable construction cues | Phase change gel, cooling cover fibers, GelMAX memory foam, 3-layer build | Four-layer foam system plus coils, cooling cover, ships boxed | Reinforced center support emphasis, SealyCool air gel foam, DuraFlex edge system | TENCEL cover, memory foam comfort, IntelliCoil support, Precision Edge + AirVent |
| Delivery style | Doorstep delivery; no setup | Doorstep delivery; no setup | In-room delivery and setup; haul away included | In-room delivery and setup; haul away included |
| Motion isolation | Highest | High | Moderate | Moderate |
| Ease of turning | Moderate | High | High | High |
| Edge confidence | Moderate | Good | Very good | Very good |
| Best fit from our testing | Pressure relief seekers and quiet sleepers | Couples wanting balance and airflow | Back/stomach sleepers needing stronger “hold” | People who want a substantial, supportive pillow-top feel |
How We Tested It
We evaluated each mattress through real-world sleep plus repeatable checks from our how we test mattresses process: edge sitting and edge sleeping for stability, rolling and repositioning for responsiveness, partner movement checks for motion isolation, and multi-night impressions for pressure relief and temperature. The scores reflect trade-offs you’ll actually notice at home—not just lab-style numbers.
Costco Mattress: Our Testing Experience
Novaform 14” ComfortGrande Advanced Gel Memory Foam Mattress
Our Testing Experience
Novaform was the calmest surface in this group. On side-sleeping nights, it eased shoulder and hip pressure without feeling overly “stuck.” It also did the best job muting partner movement—the surface stayed steady when someone changed position. The trade-off is speed: turning takes a bit more effort than on the hybrid or the springier innerspring options.
What we liked
- Deep, steady pressure relief without feeling unstable
- Very low partner disturbance when someone shifts position
- Medium feel that works for a wide range of body types
Who it is best for
- Side sleepers who want calmer shoulders and hips
- Couples who prioritize quiet, low-motion sleep
- People who read or lounge in bed and want gentle contouring
Where it falls short
- Edge feels softer when you sit or perch
- Combination sleepers may want faster surface rebound
Pros & Cons
| Pros | Cons |
| Excellent motion isolation Strong pressure relief for side sleeping Medium firmness feel works broadly |
Edge compression is noticeable when seated Slower response than coil-based beds |
Details
- Firmness: Medium
- Type: Memory foam
- Thickness: 14 in
- Notable cooling cues: triple-action cooling; phase change gel; cool-to-touch cover fibers
- Warranty: 20-year
- Delivery: doorstep delivery; no setup
Review Score
| Metric | Score | Remarks |
| Support | 4.2 | Good lumbar “settle” without a hammock feel for average-weight sleepers |
| Cooling | 3.8 | Cooler on contact, but heavy hot sleepers may still warm it over time |
| Pressure Relief | 4.5 | Best joint comfort in the group, especially on the shoulders and outer hips |
| Motion Isolation | 4.7 | Movement stays localized; strong choice for light sleepers |
| Responsiveness | 3.6 | Comfortable, but not the quickest when changing positions |
| Edge Support | 3.5 | Secure enough lying down; softer when sitting on the perimeter |
| Durability | 4.0 | Solid structure feel, but foam can be more sensitive to long-term impressions |
| Overall Score | 4.0 | Best pressure relief and quiet sleep, with a softer edge trade-off |
Casper Cooling Select 12" Hybrid Medium Firm Mattress
Our Testing Experience
Casper Cooling Select felt the most even and adaptable day to day. It contours enough to take pressure off, but the coil unit adds lift, so rolling and repositioning feels easy. It slept cooler than the all-foam Novaform, while still keeping motion reasonably controlled for a hybrid. If you’re buying one mattress to suit two sleepers, this is the safest all-around choice.
What we liked
- Balanced support with easier turning than all-foam
- Cooling feel that held up better in longer nights
- Strong all-around performance for couples
Who it is best for
- Hybrid sleepers who switch positions at night
- Hot sleepers who want airflow without going ultra-firm
- Couples wanting a “middle ground” between foam and springs
Where it falls short
- Light bounce can still register for very motion-sensitive sleepers
- Deep memory-foam hug fans may want more sink-in
Pros & Cons
| Pros | Cons |
| Well-rounded comfort and support Good cooling and easy movement Couple-friendly balance |
More bounce than all-foam beds Not the deepest contouring feel |
Details
- Firmness: Medium
- Type: Hybrid
- Thickness: 12 in
- Construction cues: four-layer foam construction plus resilient coils; cooling cover; ships in a compact box
- Warranty: 10-year limited
- Delivery: doorstep delivery; no setup
Review Score
| Metric | Score | Remarks |
| Support | 4.3 | Stable spine feel across back and side positions |
| Cooling | 4.2 | Best sustained temperature comfort in warm-room nights |
| Pressure Relief | 4.1 | Comfortable contouring without feeling overly plush |
| Motion Isolation | 4.0 | Good damping for a hybrid, with mild bounce remaining |
| Responsiveness | 4.3 | Turns feel smooth and low-effort |
| Edge Support | 4.1 | More stable at the perimeter than all-foam |
| Durability | 4.1 | Hybrid build feels resilient for long-term nightly use |
| Overall Score | 4.2 | Most balanced “do-everything” option for couples and combo sleepers |
Sealy Posturepedic Plus Ridge Crest II 14" Firm or Plush Mattress
Our Testing Experience
Sealy Ridge Crest II had the most classic, “traditional mattress” feel of the group. It’s buoyant and quick to respond, which made it easy to move on and feel supported—especially for back or stomach sleeping. The edge support also felt strong for sitting or stretching out near the perimeter. The downside is that motion carries more than on foam, and the plush vs. firm version matters if you’re sensitive at the shoulders or hips.
What we liked
- Stronger center support sensation for back and stomach sleeping
- Confident edges for sitting and full-surface use
- Quick, springy position changes
Who it is best for
- Back and stomach sleepers who want a firmer “hold”
- Heavier sleepers who dislike deep sink
- People who sit on the bed edge daily
Where it falls short
- Motion travels more than on foam-heavy beds
- Pillow-top feel can be too buoyant for some side sleepers
Pros & Cons
| Pros | Cons |
| Targeted support emphasis and sturdy feel Very good edge stability Easy movement and rebound |
More motion transfer than foam beds Top can feel puffy until broken in |
Details
- Firmness: Firm pillow top or plush pillow top
- Type: Innerspring
- Thickness: 14 in
- Construction cues: reinforced center support emphasis; SealyCool air gel foam; DuraFlex edge system
- Warranty: 10-year
- Delivery: in-room delivery and setup; haul away included
Review Score
| Metric | Score | Remarks |
| Support | 4.4 | Most stable “center hold” feel for lumbar and hip alignment |
| Cooling | 4.0 | Breathes better than all-foam; pillow-top can warm slightly |
| Pressure Relief | 3.9 | Comfortable, but less joint-friendly than the Novaform for sharp side angles |
| Motion Isolation | 3.6 | Noticeable movement with bigger turns and exits |
| Responsiveness | 4.4 | Quick recovery; easy repositioning |
| Edge Support | 4.3 | Strong perimeter confidence, especially while seated |
| Durability | 4.2 | Innerspring build feels robust for nightly use |
| Overall Score | 4.1 | Best for support-forward sleepers, with motion trade-offs |
Kirkland Signature by Stearns & Foster 14.5" Pillow Top Lakeridge Mattress
Our Testing Experience
This mattress felt substantial the moment we lay down—taller profile, more "hotel bed" presence, and supportive pushback under the pillow-top surface.
Carlos focused on alignment and said it kept his mid-back steady when he stayed flat for long stretches, while still offering enough cushion to avoid a rigid feel. Mia liked the initial softness, but noted that the support underneath stayed firm when she curled on her side. The edge was the most confidence-inspiring of the four, but motion showed up more than on the Novaform when someone made a bigger repositioning move.
What we liked
- Premium, supportive pillow-top feel without losing structure
- Strong edges for full surface use
- Easy movement with a stable, responsive base
Who it is best for
- Back sleepers wanting cushion on top and firmness underneath
- Combination sleepers who dislike slow foam recovery
- Couples who use the full width of the mattress
Where it falls short
- Not the quietest choice for ultra motion-sensitive sleepers
- Tall profile may feel oversized on low frames
Pros & Cons
| Pros | Cons |
| Supportive pillow-top feel with strong structure Excellent edge confidence Responsive and easy to move on |
More motion transfer than all-foam Height may not suit every bed frame setup |
Details
- Firmness: Medium
- Type: Innerspring
- Thickness: 14.5 in
- Construction cues: TENCEL cover; memory foam comfort; IntelliCoil support; Precision Edge + AirVent
- Warranty: 10-year
- Delivery: in-room delivery and setup; haul away included
Review Score
| Metric | Score | Remarks |
| Support | 4.6 | Strongest overall support feel while maintaining surface comfort |
| Cooling | 4.0 | Breathable for an innerspring pillow-top, though not the coolest on contact |
| Pressure Relief | 4.2 | Cushioned top with steadier support underneath |
| Motion Isolation | 3.7 | Better than older-style spring beds, but not foam-level quiet |
| Responsiveness | 4.5 | Easy turning with a confident rebound |
| Edge Support | 4.5 | Most secure perimeter for sitting and edge sleeping |
| Durability | 4.4 | Substantial build feel suited to long-term use |
| Overall Score | 4.3 | Most premium and support-consistent, with moderate motion trade-offs |
Compare Performance Scores of These Mattresses
| Mattress | Overall Score | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness |
| Novaform ComfortGrande 14” | 4.0 | 4.2 | 4.5 | 3.8 | 4.7 | 4.0 | 3.6 |
| Casper Cooling Select Hybrid 12” | 4.2 | 4.3 | 4.1 | 4.2 | 4.0 | 4.1 | 4.3 |
| Sealy Ridge Crest II 14” | 4.1 | 4.4 | 3.9 | 4.0 | 3.6 | 4.2 | 4.4 |
| Kirkland S&F Lakeridge Pillow Top 14.5” | 4.3 | 4.6 | 4.2 | 4.0 | 3.7 | 4.4 | 4.5 |
On the scorecard, Casper is the most consistently strong across categories without a clear weak spot. Novaform is the specialist for pressure relief and motion isolation, but it’s slower to respond. Sealy and Kirkland lean more support-forward with faster, springier movement—great for back and stomach sleepers—at the cost of more motion transfer.
How to Choose the Costco Mattress?
Start with sleep position and how sensitive you are to movement. For side sleeping comfort and the quietest surface, Novaform is the best fit. If you share a bed and want the most balanced mix of cooling, support, and easy turning, go with Casper Cooling Select. If you want a sturdier, more traditional spring feel—especially if you sit on the edge often—Sealy Ridge Crest II makes the most sense. For the most premium pillow-top feel with the strongest perimeter support, Kirkland Lakeridge is the upgrade pick.
Limitations
There isn’t one “best” Costco mattress for everyone—each build comes with trade-offs. Foam quiets motion and cushions pressure points, but it can feel slower to move on and softer along the edges. Innerspring options feel easier to reposition on and tend to hold their shape at the perimeter, but they pass along more partner movement. Casper sits in the middle, but it isn’t the right match if you want an ultra-plush, deep-sink feel.
Costco Mattress Vs. Alternatives
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Why choose these models
- A mix of feels in one place: foam, hybrid, and innerspring.
- Straightforward delivery options—boxed delivery for some models and in-room setup on Costco Direct listings.
- Strong value if you match the mattress type to your sleep style.
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Alternatives to consider
- Saatva Classic: a premium innerspring with free white glove delivery and setup and a 365-night home trial.
- Nectar: an all-foam feel with a 365-night trial and long-term warranty coverage.
- Helix (Core Collection): hybrid options with a 120-night trial, limited lifetime warranty, and more targeted “match your feel” choices.
Pro Tips for Costco Mattress
- Let boxed mattresses fully expand before judging firmness (especially if your room runs cool).
- Use breathable bedding and a light protector if you sleep hot—small changes can make a noticeable difference.
- Rotate the mattress periodically to even out wear, especially in the first few months.
- If you sit on the edge daily, prioritize models with stronger perimeter support (Sealy or Kirkland).
- If partner movement wakes you, prioritize motion isolation first (Novaform), then fine-tune comfort with accessories if needed.
- Make sure your base is solid and supportive—weak slats can make any mattress feel softer and less stable.
- Give yourself a real break-in period and reassess after a few weeks, not just the first night.
FAQs
Which option felt best for side sleeping comfort?
Novaform had the calmest shoulder and hip pressure relief, and it stayed the quietest when a partner moved.
Which mattress is easiest to move on?
Sealy and Kirkland were the most responsive. Casper was close behind, while Novaform felt slower to turn on.
Which Costco mattress is best for couples?
Casper Cooling Select is the most balanced couple-friendly pick, and Novaform is the best choice if you’re especially sensitive to motion.
Which one offers the best edge support?
Kirkland had the most secure perimeter feel, with Sealy close behind. Novaform’s edge felt softer by comparison.
