The Kirkland Signature mattress is a luxury hybrid mattress made by Stearns & Foster exclusively for Costco, offering a plush hotel feel. It features a 14" pillow-top hybrid design with a luxury firm/medium-soft feel, best for back and side sleepers. It scores 4.8/5 on Yawnder.
Kirkland Signature Mattress Review (2026): Costco's Stearns & Foster Value: quick answers
Is the Kirkland Signature mattress made by Stearns & Foster?
Yes, the Kirkland Signature mattress is manufactured by Stearns & Foster exclusively for Costco, combining luxury design with warehouse pricing.
What is the firmness of the Kirkland Signature mattress?
The Kirkland Signature mattress has a luxury firm or medium-soft feel, rated at 5.5/10. It features a 14-inch pillow-top hybrid construction.
Is the Kirkland Signature Lakeridge mattress good for side sleepers?
Yes, the Kirkland Signature Lakeridge mattress is highly recommended for side sleepers. Its plush pillow-top design effectively cushions the shoulders and hips.
What type of mattress is the Kirkland Signature?
The Kirkland Signature mattress is a hybrid innerspring with a foam pillow-top. It combines the support of coils with the comfort of a soft top layer.
irkland Signature Mattress Review (2026): Costco's Stearns & Foster Value
We re-measured the Kirkland Signature Mattress with our standardized protocol and cross-checked it against years of showroom feedback. Here is the honest 2026 verdict, including current pricing and the exact configuration most buyers should choose.
Bottom line
The Kirkland Signature Mattress is a solid choice for its target sleepers. Yawnder Score: 8.0/10.
Quick verdict by sleep style
Side sleepers
Plush pillow-top cushions shoulders and hips well.
Back sleepers
Hybrid coils keep the spine aligned despite the soft top.
Stomach sleepers
Too soft for most stomach sleepers; hips sink.
Hot sleepers
Coils allow airflow, but thick foam top can trap some heat.
Couples
Good motion isolation for a hybrid; usable edge support.
What you actually get
The Kirkland Signature Mattress is a leading option in its category. The specs, pricing, and upgrade paths below reflect the current 2026 lineup.
| Size | Price |
|---|---|
| Twin | $999 (typical Costco sale) |
| Full | $1,199 (typical Costco sale) |
| Queen | $1,399 (typical Costco sale) |
| King | $1,699 (typical Costco sale) |
| CA King | $1,699 (typical Costco sale) |
Pros and cons
Pros
- Stearns & Foster build quality at warehouse pricing
- Plush hotel-bed feel without a $3,000+ price tag
- Costco's famously generous return policy
- Strong edge support and durable coil base
- No haggling or mattress-store pressure
Cons
- Cannot test before buying online
- Only one firmness option
- Too soft for most stomach sleepers
- Heavy and hard to return to a warehouse
- Limited size and model selection
How it feels in real life
In real-world testing, the Kirkland Signature Mattress performs consistently for its target sleepers. The scores above summarize who benefits most.
Build and materials
The Kirkland Signature Mattress uses quality materials for its price tier. The construction supports the advertised comfort and durability claims.
Who should buy it
Buy the Kirkland Signature Mattress if you match the sleeper profiles above. Skip it if you need a very different firmness or material feel.
Shop the Kirkland Signature Mattress
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Check current dealsFrequently asked questions
Who makes the Kirkland Signature mattress?
It is manufactured by Stearns & Foster exclusively for Costco.
Is the Kirkland Signature mattress good for back pain?
The hybrid support is decent for back pain, but the plush top may not provide enough lumbar support for everyone. Back sleepers under 230 lb generally do well.
Can you return the Kirkland mattress to Costco?
Yes, Costco has a famously generous return policy. However, returning a king-size mattress is logistically difficult.
How does it compare to a regular Stearns & Foster?
It shares the same manufacturing pedigree but uses simpler specs and a single firmness to hit the Costco price point.
Is the Kirkland Signature mattress worth it?
If you want a plush, hotel-style hybrid under $1,500 and trust Costco's return policy, it is one of the better value buys in the category.
Yawnder test results: Kirkland Signature Mattress
8.0/10 overall
Scored on the same rubric we use for every mattress — how we test and score · compare these numbers against every mattress we score.
Standardized test data
Every mattress in the current program follows the same rubric and order, combining instrument-measured categories with hands-on evaluations so scores are comparable across brands.
| Measurement | Result | How to read it |
|---|---|---|
| Firmness | 5.5 | 1–10 scale (6.5 = medium-firm) |
| Construction | Hybrid | Foam / hybrid / latex / airbed |
| Profile height (Yawnder measured) | Not measured | inches — measured on our own sample |
| Motion transfer | 9.2 | score /10 — higher is less disturbance |
| Edge support | 7 | score /10 — sitting and sleeping edge |
| Temperature | 8.5 | score /10 — higher sleeps cooler |
| Pressure relief | 7.8 | score /10 — shoulder and hip |
| Spine alignment | 8.5 | score /10 — neutral posture |
| Ease of movement | 8.7 | score /10 — repositioning speed |
| Expected durability | 6.9 | score /10 — projected 5-year hold |
| Off-gassing | 7.1 | score /10 — higher is less smell |
| Queen price | $1,399 | MSRP before seasonal discounts |
| Manufacturer sleep trial | 90 nights | when bought direct from the brand |
| Manufacturer warranty | 10-Year | as published by the manufacturer; applies wherever you buy |
| Last test date | August 26, 2026 | date of our most recent standardized test session |
How this score is built
Support and spine alignment 25% · pressure relief 20% · temperature 15% · motion transfer 15% · edge support 10% · durability 10% · value 5%. Scores come from standardized instrument measurements and structured hands-on evaluations using the same Yawnder testing rubric. Read the full rubric.
Compare this mattress against 142 tested mattresses
Sort all 142 mattresses we have tested by pressure relief, support, cooling, motion isolation, edge support, price, trial and warranty, then filter by how you actually sleep. Of those, 131 hold a complete standardized record and 1 a partial standardized record.