PICK

Sleep Innovations Marley 12 Inch Cooling Gel Memory Foam Mattress Review
The Sleep Innovations Marley is a 12-inch gel memory foam mattress designed for cool, contouring support. It suits side sleepers who want pressure relief without sleeping hot. Its standout trait is the cooling gel layer that draws heat away.
ProductPickly is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. It never changes our picks.
For side sleepers on a budget, the Marley offers solid pressure relief and cooling. It performs well for its price, but may lack edge support. Overall, it is a good value for those who prefer a medium feel.
How it scores
The good and the annoying
- Cooling gel layer helps regulate temperature
- Excellent motion isolation for couples
- Good pressure relief for hips and shoulders
- Affordable price point for a 12-inch mattress
- Weak edge support may cause sagging when sitting
- Off-gassing smell may last a few days
- Medium firmness may not suit those wanting extra support
The Sleep Innovations Marley is a 12-inch gel memory foam mattress designed for cool, contouring support. It suits side sleepers who want pressure relief without sleeping hot. Its standout trait is the cooling gel layer that draws heat away.
Cooling Gel Technology
The Marley includes a cooling gel-infused memory foam layer. This layer absorbs and dissipates body heat. Owners report sleeping cooler than with standard memory foam. The gel helps prevent the heat retention common in traditional foam.
Support for Side Sleepers
Memory foam contours to the body, aligning the spine. For side sleepers, this relieves pressure on hips and shoulders. The 12-inch thickness provides adequate support for average body weights. Heavier individuals might find it too soft.
Motion Isolation
Foam absorbs movement, making it ideal for couples. One partner's tossing and turning rarely disturbs the other. This is a key advantage over innerspring mattresses. Owners often highlight this feature in reviews.
Edge Support
Like most all-foam mattresses, edge support is limited. Sitting on the edge may cause compression. This can make getting in and out of bed less stable. It's a common trade-off for the price.
Specs that matter
| Mattress Type | Memory Foam |
| Thickness | 12 inches |
| Firmness | Medium |
| Layers | Cooling gel memory foam, comfort foam, support foam |
| Warranty | 20-year limited warranty |
| Trial Period | Not specified |
Buy if you are a side sleeper seeking a cool, contouring mattress with good pressure relief at a budget-friendly price.
Skip if you need strong edge support or prefer a firmer feel for stomach or back sleeping.
Questions before you buy
Is the Sleep Innovations Marley good for side sleepers?
Yes, it offers good pressure relief for hips and shoulders. The memory foam contours to the body, helping align the spine.
Does the Marley sleep cool?
The cooling gel layer helps dissipate heat. Many owners report sleeping cooler than with standard memory foam. However, it may still retain some heat for very hot sleepers.
What firmness is the Marley mattress?
It is rated as medium firmness. This suits side sleepers who need contouring without excessive sinkage.
How thick is the Marley mattress?
It is 12 inches thick, providing a substantial profile. This thickness supports average-weight individuals well.
Does the Marley have strong edge support?
No, edge support is weak. Sitting on the edge may cause compression. This is typical for all-foam mattresses.
What warranty does the Marley offer?
It comes with a 20-year limited warranty. This covers manufacturing defects and workmanship.
How long does the off-gassing smell last?
Owners report the smell dissipates within a few days. Ventilating the room speeds up the process.