Updated October 2026

Best Mattresses for Pregnancy

Pregnancy changes everything about how you sleep. You need extra hip and shoulder cushioning for side sleeping, cooling for hormonal temperature spikes, and enough support to ease lower back strain.

Key Evidence and Buying Findings

20 weeks
Gestational age after which left-side sleeping is recommended
Source: ACOG patient guidance, 2024
5–6
Optimal firmness range for prenatal side-sleeper support
Source: Sleep Sage editorial analysis
78%
Of pregnant women report sleep disturbances by the third trimester
Source: National Sleep Foundation pregnancy survey, 2023
9.4/10
Top pressure-relief rating in our prenatal category
Source: Sleep Sage editorial scoring (research rating)

What Pregnant Women Need in a Mattress

Side Sleep Support

Doctors recommend sleeping on your left side during pregnancy. Deep cushioning prevents hip pain.

Firmness 4–6 ideal

Cooling

Pregnancy raises basal body temperature. A cooling mattress helps prevent night sweats.

Cooling 9+ recommended

Low Chemical Off-Gas

CertiPUR-US or organic certifications ensure low VOC emissions — important for developing babies.

Check certifications

Easy Repositioning

Frequent position changes are common. Responsive surfaces (hybrid/latex) make movement easier.

Avoid deep memory foam

Our 8 Best Mattresses for Pregnancy

Ranked by comfort, cooling, and motion isolation for prenatal side sleepers.

#3
Hästens 2000T — best mattress for pregnancy
Best Pressure Relief

Hästens 2000T

The hand-built Swedish horsehair bed that most people are comparing every other luxury mattress to

9.7/10

Comfort: 9.8/10

9.8
Comfort
9.9
Cooling
9.4
Motion Iso

Quick Compare: Our Pregnancy Picks

MattressFirmnessComfortCoolingMotion isoPriceBest for
Vispring Diamond Majesty5.5/109.99.89.7$44000Third-trimester side sleeping
Tempur-Pedic TEMPUR-LUXEbreeze°5/109.69.89.9$4999Hot sleepers
Hästens 2000T6/109.89.99.4$36000Hip and shoulder relief
Tempur-Pedic TEMPUR-breeze°5/109.59.79.8$3999Couples / motion isolation
Sleep Number Climate3605/109.59.89.6$6999Couples / motion isolation
Brooklyn Bedding ThermoBalance Elite6/109.69.99.4$1749Couples / motion isolation
Technogel Favola 3.05/109.69.79.3$3775Couples / motion isolation
Tempur-Pedic TEMPUR-LuxeAdapt4/109.78.99.9$3999Couples / motion isolation

Match Your Trimester to a Mattress

Trimester / symptomTarget firmnessWhat to prioritize
First trimester: nausea, fatigue4–6/10Motion isolation and a surface that's easy to reposition on
Second trimester: growing belly, back strain5–6/10Zoned lumbar support and enough hip give for side sleeping
Third trimester: hip pressure, night sweats4.5–5.5/10Maximum pressure relief plus active cooling
Hot sleeper throughout pregnancy5–6/10Cooling score 9+; hybrid or latex over dense memory foam
Lower-back pain dominant5.5–6.5/10Firmer lumbar zone with a thin topper for hip comfort
Plus-size pregnancy5.5–6.5/10High-density foams or reinforced coils to prevent bottoming out

What to Avoid During Pregnancy

  • Firm mattresses over 7/10. They create shoulder and hip pressure points that make left-side sleeping unsustainable.
  • Stomach sleeping. Becomes impractical and unsafe as the belly grows; a too-soft mattress makes it harder to avoid.
  • Deep, slow-recovery memory foam. Makes repositioning effortful when you're already waking frequently.
  • Poor cooling. Hormonal temperature spikes turn a warm mattress into a sleep disruptor.
  • Thin comfort layers. The shoulder and hip need 3+ inches of cushioning to stay aligned on the side.
  • Old or sagging mattresses. Uneven support increases back strain and makes side-sleep alignment harder.

Why Mattress Choice Matters During Pregnancy

After 20 weeks, ACOG recommends side sleeping — ideally on the left — to maximize blood flow to the placenta. That means roughly 20 weeks of spending most of the night on one hip and shoulder. A mattress that doesn't cushion those contact points creates a cascade of poor sleep, more frequent position changes, and added lower-back strain from compensatory twisting.

The ideal pregnancy mattress solves three problems at once:

  • Pressure relief. Deep contouring at the shoulder and hip keeps capillary pressure low so you don't wake with numbness or pain.
  • Spinal support. Zoned support under the lower back prevents the belly from pulling the lumbar spine out of neutral.
  • Temperature regulation. Pregnancy raises basal body temperature; a cooling surface reduces night sweats and sleep fragmentation.

Our Testing Protocol

We measure side-sleeper pressure at the shoulder and greater trochanter, lumbar deviation, and surface temperature after 30 minutes. Pregnancy picks must score 8.5+ on comfort, 8.0+ on cooling, and keep lumbar deviation under 0.5 cm.

A mattress supports sleep, not prenatal care.

Any persistent pain, swelling, headaches, vision changes, or concerns about fetal movement should be discussed with your obstetric provider. This guide optimizes comfort — it doesn't replace medical advice.

Pregnancy Sleep Tips by Trimester

First Trimester (Weeks 1–12)

Sleep position is less critical — any comfortable position works. Focus on managing nausea and fatigue. Consider a mattress with good motion isolation if nausea causes frequent position changes.

Second Trimester (Weeks 13–26)

Begin training yourself to sleep on your left side. A medium-soft mattress (4–5.5 firmness) helps cushion your growing belly. A pregnancy pillow combined with a good mattress provides optimal support.

Third Trimester (Weeks 27–40)

Left-side sleeping is most important now. You'll need maximum hip and shoulder pressure relief, strong cooling (body temperature peaks), and a responsive surface for frequent repositioning. This is when mattress quality matters most.

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