LA summers are beautiful — until you're lying awake at midnight in a 78-degree bedroom, sweating through your sheets. The culprit is often the mattress itself. Traditional foam holds onto body heat. In a warm climate with warm nights, that compounds fast.
Gel-infused mattresses were designed to solve this. By blending thermally conductive gel into the foam layers, they absorb and disperse heat rather than trapping it. This guide covers how gel technology works, who benefits most, and which options are worth testing at our LA showrooms.
Gel beads or gel swirls are mixed into the foam during manufacturing. These materials have higher thermal conductivity than standard polyurethane — meaning they absorb heat more readily and move it away from your skin faster.
Beyond the gel itself, better gel mattresses also use:
The result is a mattress that still contours and relieves pressure like foam — but without the heat buildup that makes traditional memory foam uncomfortable in warm climates.
Important to know: Gel foam is meaningfully cooler than traditional memory foam, but it's not as cool as a hybrid mattress with coils or a natural latex mattress. If you run extremely hot, a hybrid may be the better choice.
Gel mattresses are a strong fit if you:
If you're a severe hot sleeper — waking up consistently sweaty even in cooler rooms — you may want to consider a hybrid or latex option alongside gel foam choices.
| Feature | Gel Memory Foam | Traditional Memory Foam | Standard Polyfoam |
|---|---|---|---|
| Cooling Ability | Good — absorbs and disperses heat | Low — retains body heat | Moderate — less contouring but still warm |
| Pressure Relief | Very Good | Excellent | Moderate |
| Motion Isolation | Excellent | Excellent | Good |
| Durability | 7–10 years | 7–10 years | 5–8 years |
| Best For | Hot sleepers who want foam feel | Pressure relief, cool rooms | Budget shoppers |
The Lily Firm combines gel-infused memory foam with a firmer comfort rating — a combination that works well for back and stomach sleepers who run hot. The gel layer draws heat away from pressure points while the firm feel prevents excessive sinkage (which also reduces heat buildup).
Best for: Back sleepers, stomach sleepers, those who want cooling without a soft feel
Cooling level: Good — gel infusion throughout top layer
| Pros | Cons |
|---|---|
| Contours without excessive sinkage | May be too firm for side sleepers |
| Gel layer reduces surface heat | Less bounce than hybrid options |
| Excellent motion isolation for couples | Moderate edge support |
An all-foam gel mattress with a medium-plush feel — a good option for side sleepers who want pressure relief at the shoulders and hips without the heat of standard memory foam. The high-density base provides durability and stability.
Best for: Side sleepers, couples, those on a more modest budget
Cooling level: Good — gel throughout, breathable cover
| Pros | Cons |
|---|---|
| Good pressure relief at shoulders and hips | Less edge support than a hybrid |
| Sleeps cooler than standard memory foam | Not ideal for strict stomach sleepers |
| Strong motion isolation | Less responsive than latex or coil options |
Tempur-Pedic's most advanced cooling solution combines their proprietary TEMPUR-APR® foam with a SmartClimate® dual-layer cover designed to stay cool to the touch. If you want the pressure relief and durability of Tempur-Pedic alongside meaningful cooling, this is the model to consider.
Best for: Side sleepers, those with pressure point issues, couples
Cooling level: Very Good — advanced cover technology plus engineered foam
| Pros | Cons |
|---|---|
| Exceptional pressure relief | Premium price point |
| Cool-to-touch cover stays noticeably cooler | Heavy — difficult to move without help |
| Excellent motion isolation | May feel too soft for back/stomach sleepers |
Nearly every foam mattress is marketed as "gel-infused" now. The meaningful differences are: how much gel, where it's located, and whether the foam structure itself (open-cell vs. closed-cell) supports airflow. Ask about this in the showroom.
A gel mattress paired with a vinyl-backed mattress protector and polyester sheets will still sleep hot. Look at your full sleep setup — breathable sheets, a moisture-wicking protector, and light blankets all contribute.
A mattress that feels cool in an air-conditioned showroom may perform differently in a 78-degree bedroom. Our showrooms can help you identify which materials hold their cooling properties most reliably under realistic conditions.
Softer mattresses let you sink deeper into the foam — which increases surface area contact and heat buildup. A medium or medium-firm feel often produces better cooling performance than the same gel foam in a softer configuration.
Cooling performance is one of the most important and hardest-to-evaluate factors when buying a mattress online. At LA Mattress Store, you can lie on gel foam, hybrid, and latex options side by side across our 5 Southern California locations.
We also offer flexible financing and a 120-night comfort guarantee, so you're not locked in if the mattress feels different at home during a July heatwave.
Yes — measurably cooler than standard memory foam. The difference is most noticeable in the first half of the night. Some gel mattresses maintain that advantage all night; others warm up gradually. Materials like graphite, copper, and PCM covers tend to sustain cooling better.
This varies by product. Entry-level gel foams may warm up after 3–4 hours. Premium gel mattresses with open-cell construction and PCM covers tend to stay cooler through the night. Ask about this specifically when shopping.
For moderate hot sleepers, high-quality gel foam is often sufficient. For severe hot sleepers, a hybrid mattress with coils typically provides better sustained cooling because the coils create natural air channels.
Medium to medium-firm typically sleeps cooler than soft, because you don't sink as deeply into the foam. Less sinkage means less surface area contact and less heat buildup.
Yes — a latex or gel topper adds a cooler surface layer and can extend the life of your current mattress. This is a cost-effective option if your current mattress is otherwise good.
A gel mattress reduces how much heat your sleep surface contributes. For LA summer nights in the upper 70s or 80s, most people still benefit from at least a fan or light AC. The mattress alone won't overcome a very hot room.
Yes. We offer financing plans to make it easier to get the right mattress without compromise. Ask in-store or visit our financing page for details.
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