The short answer: Buy it if you sleep on your back or stomach, want firm with coils, and are on a budget. Skip it if you sleep on your side with shoulder pain.
Avenco SyncDeep Firm Hybrid (12 in) (Queen)
A cheap firm hybrid with zoned lumbar support, sold by Amazon.com with a 100-night trial.
Why it is here: It combines the features we look for in a back-pain bed with a price usually reserved for basic foam.
- Sold and shipped by Amazon.com
- 100-night home trial
- 10-year warranty
- Zoned support
Scale: our reading of the maker's label.
- Side sleepers
- Back sleepers
- Stomach sleepers
- Combination sleepers
- Zoned support
- Build
- Hybrid, 12 in, pocket springs, zoned lumbar support, reinforced edge
- Trial
- 100 nights
- Warranty
- 10 years
- Sold by
- Amazon.com
- Zoning
- Zoned lumbar support (maker's wording)
- Weight
- 500 lb listed limit
- Price band
- Budget
Good fit if
You need firm, lower-back support and coils, and the budget will not stretch past the low hundreds.Look elsewhere if
You are a side sleeper with shoulder pain.Other versions: Queen, 14 in; King, 12 in

Avenco SyncDeep specs at a glance
| Build | Hybrid, 12 in, pocket springs, zoned lumbar support, reinforced edge |
|---|---|
| Firmness | Firm (about 7–8/10, our reading of the label) |
| Zoned support | Zoned lumbar support (maker's wording) |
| Trial | 100 nights |
| Warranty | 10 years |
| Sold by | Amazon.com |
| Certifications | CertiPUR-US, OEKO-TEX, fiberglass-free (per listing) |
| Weight limit | 500 lb listed limit |
| Price band | Budget |
| ASIN (queen) | B0GX1X7DPC |
What the Avenco SyncDeep is
A 12-inch firm hybrid with a responsive pocket-spring system, ergonomic zoned support, a reinforced perimeter, gel foam and a breathable knit cover. CertiPUR-US foams, OEKO-TEX fabrics, fiberglass-free, per the listing. Sold by Amazon.com with a 100-night trial and a 10-year warranty; 500 lb limit. A 14-inch version and a King are available.
How the Avenco SyncDeep handles back pain
Firm and zoned under the lumbar area: the combination keeps the pelvis level for back and stomach sleepers. The springs give it more bounce and airflow than budget foam beds.
Who should skip the Avenco SyncDeep
- Side sleepers with shoulder or hip pain.
- Heavier sleepers who want a higher weight limit: see Helix Plus.
If the Avenco SyncDeep is not the one
Zinus Green Tea Memory Foam (12 in) (Queen)
The cheap memory-foam bed almost everyone has heard of, rated firmer than its 'medium firm' label suggests.
- Sold and shipped by Amazon.com
- 10-year warranty
- Zoned support
- Fiberglass-free
Scale: maker's number.
- Side sleepers
- Back sleepers
- Stomach sleepers
- Combination sleepers
- Zoned support
- Build
- All-foam, 12 in, zoned pressure-relief foam, green-tea and charcoal infused
- Trial
- Not stated on listing
- Warranty
- 10 years (limited)
- Sold by
- Amazon.com
- Zoning
- Patented zoned pressure relief (maker's wording)
- Weight
- 500 lb listed limit
- Price band
- Budget
Good fit if
Budget is tight, you sleep on your back, and you want a firm foam bed to test whether firmness helps.Look elsewhere if
You weigh well over 230 lb or sleep hot.Other versions: King; Queen, 10 in; Full

VISCOFLEX Extra Firm 14 in Hybrid (Queen)
A low-cost extra-firm hybrid with a year-long trial.
- Sold by the maker's own Amazon store
- 365-night home trial
- 10-year warranty
- Zoned support
Scale: our reading of the maker's label.
- Side sleepers
- Back sleepers
- Stomach sleepers
- Combination sleepers
- Zoned support
- Build
- Hybrid, 14 in, 500 high-compression springs listed, 7-zone layout
- Trial
- 365 nights
- Warranty
- 10 years
- Sold by
- VISCOFLEX (the maker's storefront)
- Zoning
- 7-zone layout (maker's wording)
- Price band
- Budget
Good fit if
You want very firm on a budget and like knowing you can send it back within a year.Look elsewhere if
You sleep on your side.
Avenco SyncDeep: what readers ask
Is the Avenco mattress good for back pain?
For back and stomach sleepers on a budget, it is one of the better options we found: firm, zoned, and sold by Amazon.com with a 100-night trial.
Neutral Spine is not a medical provider. A mattress can make sleep more comfortable; it does not treat a spinal condition. Pain that follows an injury, spreads down a leg, or comes with numbness, weakness or fever needs a doctor first. Full disclaimer.