Float Therapy During Pregnancy: A Scientific Perspective on Benefits and Safety
- Rebecca Nolan Harris, PhD
- 2 days ago
- 2 min read
Float therapy, also known as sensory deprivation or isolation tank therapy, involves lying in a specialized tank filled with warm water and Epsom salts, allowing the body to float effortlessly and promoting deep relaxation. For pregnant women, this practice offers several potential benefits, though it's essential to approach it with informed caution.

1. Physical Relief and Weightlessness with Float Therapy During Pregnancy
As pregnancy progresses, the body undergoes significant changes, leading to discomfort in areas like the back, hips, and joints. The buoyancy provided by float therapy reduces gravitational pressure, allowing muscles and joints to relax. This weightless environment can alleviate common pregnancy-related pains, such as sciatica and lower back discomfort.Â
2. Stress Reduction and Improved Sleep
Pregnancy can bring about heightened stress and anxiety, which may interfere with sleep. Float therapy induces a state of deep relaxation by removing external stimuli, allowing the mind to enter a meditative state. This deep relaxation helps lower cortisol levels and promotes better sleep patterns.
3. Enhanced Circulation and Reduced Swelling
Swelling, particularly in the feet and ankles, is common during pregnancy due to increased fluid retention. The buoyant environment of a float tank can improve circulation and reduce edema by promoting better blood flow and lymphatic drainage.Â
4. Magnesium Absorption
Epsom salts used in float tanks are rich in magnesium sulfate. Magnesium plays a crucial role during pregnancy, aiding in muscle function and reducing the risk of leg cramps. While some studies suggest that magnesium supplementation can help prevent complications like preeclampsia, the efficacy of transdermal magnesium absorption (through the skin) remains a topic of ongoing research.Â
5. Emotional Well-being and Baby Bonding
The serene environment of a float tank allows expectant mothers to connect deeply with their babies. The absence of external distractions facilitates mindfulness and can enhance the emotional bond between mother and child.
Safety Considerations
Consultation:Â Always consult with a healthcare provider before beginning float therapy during pregnancy.
Timing:Â Many practitioners recommend starting float therapy in the second trimester.
Water Temperature: Ensure the water temperature is around skin temperature (93.5°F or 34°C) to prevent overheating.
Medical Conditions:Â Avoid float therapy if you have conditions like preeclampsia or other high-risk pregnancy complications. NOTE: Preeclampsia is often treated with IV magnesium; talk to your OB/GYN about whether floating is safe for you.
Float therapy offers a range of potential benefits for pregnant women, from physical relief to emotional well-being. It's essential to approach this therapy with informed caution and always consult with a healthcare provider to ensure safety for both mother and baby.