By week 28, if your current mattress is leaving you with hip pain every morning, a topper may be the fastest, least expensive fix available. The question is which type to buy. Latex and memory foam are the two dominant performance options โ both provide pressure relief for side sleepers, but they behave differently in ways that matter specifically during pregnancy. Heat retention, repositioning ease, off-gassing, and chemical profile are all factors that come up during the third trimester in ways they don't for non-pregnant sleepers. This guide compares both materials honestly and recommends specific products at different price points. For context on the full range of mattress options during pregnancy, see our full mattress topper guide.
At a Glance: Latex vs Memory Foam for Pregnancy
| Feature | Natural Latex | Gel Memory Foam |
|---|---|---|
| Pressure relief | Excellent | Excellent |
| Heat retention | Low โ sleeps cool | Moderate โ gel helps but still warmer than latex |
| Repositioning ease | Fast โ bounces back quickly | Slower โ sinks in, takes a moment to recover |
| Off-gassing | Minimal (natural latex) | Moderate โ 24โ72 hours to air out |
| Chemical profile | Natural material (GOLS/OEKO-TEX) | Synthetic foam (CertiPUR-US = low VOC) |
| Price range (queen, 2โ3 inch) | $199โ$349 | $89โ$199 |
| Durability | Excellent โ 8โ10+ years | Good โ 5โ8 years typical |
| Latex allergy risk | Yes โ check if allergic | None |
| Best for pregnancy use | Hot sleepers, restless repositioners | Budget-conscious, standard temperature |
Option A: Natural Latex Toppers
Natural latex is derived from rubber tree sap (Hevea brasiliensis) and is either Dunlop or Talalay processed. Dunlop latex is denser and firmer โ better as a support layer. Talalay is lighter and more consistently uniform โ better as a comfort/pressure-relief layer. For a 2 to 3-inch topper used during pregnancy, Talalay in a soft or medium firmness is typically the better choice because it provides more conforming pressure relief at the shoulder and hip pressure points of a side sleeper.
Natural latex has two significant advantages for pregnancy: it sleeps cool (the open-cell structure allows airflow that synthetic foam doesn't match), and it recovers quickly when you move. In the third trimester when you're repositioning every 45 to 90 minutes, a latex topper that springs back immediately is meaningfully more comfortable than a memory foam topper that holds your previous position for several seconds after you've moved.
OEKO-TEX Standard 100 certification is the key safety credential for latex during pregnancy. GOLS (Global Organic Latex Standard) is even better if you want certified organic. Both certifications confirm the latex has been tested for harmful substances.
- 100% natural Dunlop latex from rubber trees
- Three firmness options: soft, medium, firm
- OEKO-TEX Standard 100 certified
Natural Latex Pros for Pregnancy
- Sleeps significantly cooler than memory foam โ critical for pregnancy heat management
- Responds quickly when repositioning โ no slow sinkage delay at 3am
- Natural material with minimal chemical processing (OEKO-TEX/GOLS certified)
- Extremely durable โ 8 to 10+ years vs 5 to 8 for memory foam
- Naturally dust-mite and mold resistant
Natural Latex Cons for Pregnancy
- Significantly more expensive than memory foam ($199โ$349 vs $89โ$199)
- Latex allergy exists โ rule this out before purchasing
- Heavier and more difficult to handle than foam
- Smell of natural latex can be off-putting initially (dissipates in 24โ48 hours)
Option B: Gel Memory Foam Toppers
Standard memory foam retains heat โ a well-documented limitation. Gel-infused memory foam addresses this by embedding gel beads or swirled gel into the foam to help dissipate heat. It's not as cool as latex, but it's meaningfully cooler than non-gel memory foam, making gel memory foam the right choice if you want the benefits of memory foam without the worst of the heat issues.
The primary advantage of gel memory foam for pregnancy is cost. The Lucid 3-inch gel memory foam topper runs $89โ$199 for a queen โ roughly half the price of a comparable natural latex option. With 75,000+ reviews, it's one of the most well-verified toppers available and consistently solves hip pain for side sleepers who have a mattress that's too firm.
CertiPUR-US certification is the safety standard to look for in memory foam. It confirms the foam was made without ozone depleters, PBDE flame retardants, mercury, lead, and other heavy metals, and meets low VOC emission standards. All reputable foam toppers in our database carry this certification.
- Ventilated gel memory foam for airflow
- 3-inch thickness adds plush cushioning
- CertiPUR-US certified foam
Gel Memory Foam Pros for Pregnancy
- Significantly more affordable than natural latex
- Excellent pressure relief for hip and shoulder pain
- Deep conforming feel that many sleepers find cradling and comfortable
- CertiPUR-US certified options are safe for pregnancy use
- Wide availability and large review bases (easy to verify before buying)
Gel Memory Foam Cons for Pregnancy
- Retains more heat than latex โ not ideal for hot sleepers
- Slower recovery โ holds your body's impression for seconds after repositioning
- Off-gasses on initial unpacking โ air out 48โ72 hours before use during pregnancy
- Shorter lifespan than natural latex (5โ8 years vs 8โ10+)
The ViscoSoft Option: When You Want Both
The ViscoSoft 4-inch Pillow Top Topper ($199โ$329) takes a hybrid approach: 2 inches of gel memory foam topped with 2 inches of fiber pillow top. The combination delivers deep pressure relief from the foam base with a softer, more breathable surface layer from the fiber top. It's a good option for women who want the conforming feel of memory foam but find the direct surface of memory foam too hot or too "sinking." The removable cover adds the convenience of washing without handling the foam. At the upper range of mid-market pricing, it's competitive with entry-level latex.
- 2-inch gel memory foam + 2-inch fiber pillow top
- Removable cover with corner straps
- CertiPUR-US certified
How Thickness Affects Pregnancy Sleep
Topper thickness directly affects how much a mattress's firmness character changes and how stable you feel when repositioning. For pregnancy:
- 2 inches: Good for mattresses that are slightly too firm. Adds noticeable pressure relief without fundamentally changing the feel. Best for the first and early second trimester.
- 3 inches: Best overall for the second and third trimester on a firm mattress. Provides meaningful hip and shoulder relief for side sleeping without creating excess instability when repositioning with a heavy belly.
- 4 inches and above: Can create a sinking, unstable feeling for third-trimester side sleepers with a large belly. The extra height also makes getting in and out of bed harder. We do not recommend 4-inch toppers specifically for pregnancy use unless your mattress is extremely firm.
Safety Considerations During Pregnancy
Two main chemical concerns come up for pregnant women shopping for toppers:
Off-gassing: New foam toppers release VOCs when first unpacked. For memory foam, air out the topper for at least 48 to 72 hours in a well-ventilated room before using it during pregnancy. Open windows, run a fan. CertiPUR-US certified foam has significantly lower VOC emissions than uncertified options.
Latex allergy: If you have any history of reactions to latex products (gloves, balloons, certain medical equipment), do not use a latex topper without first discussing it with your OB-GYN. A latex allergy with prolonged skin contact can cause significant reactions.
For both materials, look for OEKO-TEX Standard 100 (covers finished fabric), CertiPUR-US (for foam), or GOLS (for organic latex) as your certification baseline. Consult your OB-GYN about any specific chemical sensitivities during pregnancy.
Our Verdict
Choose natural latex if: you run hot at night, you're restless and reposition frequently, you want the most chemically inert material available, or you want a topper that will last a decade. The Pure Green 100% Natural Latex Topper in soft or medium is our top recommendation at $199โ$349.
Choose gel memory foam if: your budget is under $150, you sleep at a neutral temperature, or you prefer a deeply cradling feel. The Lucid 3-inch gel memory foam topper ($89โ$199) is the best value option and solves most pregnancy hip pain within the first night.
Both options are meaningfully better for pregnancy sleep than an uncovered firm mattress. The choice between them comes down to budget and temperature โ not support quality, where both perform well. For full mattress options if a topper isn't sufficient, see our pregnancy mattress guide.
Three Scenarios
Persona 1: 30 Weeks, Waking Up with Hip Pain, Medium-Firm Mattress
Your mattress is probably in the 6 to 7 range on firmness when pregnancy side sleeping requires something closer to 5. A 3-inch gel memory foam topper (Lucid, $89โ$199) addresses this directly. Air it out for 48 hours, add it to your bed, and evaluate after three nights. Most women with this complaint notice significant improvement within the first week.
Persona 2: 26 Weeks, Night Sweats Every Night, Existing Firm Mattress
Heat is your primary problem. A natural latex topper ($199โ$349) is the right investment โ it provides the pressure relief you need without adding the heat-trapping layer that memory foam brings. The Pure Green soft or medium Dunlop latex topper is the recommendation here.
Persona 3: Partner Has Latex Allergy, Budget Under $100
Latex is off the table. Go with the Lucid 3-inch gel memory foam topper and air it out for 72 hours before first use. The LinenSpa 2-inch gel topper ($45โ$99) is also worth considering if you want the lightest, most affordable option and your current mattress is only slightly too firm.