Why Do I Get So Hot When I Sleep? 8 Common Reasons

Experiencing night sweats? Discover the top eight reasons you might get hot during sleep and find effective solutions with Thrivelab.
Medically Reviewed By:
Dr. Nayan Patel

Have you ever woken up in the middle of the night, drenched in sweat and uncomfortably hot? If so, you're not alone. This common occurrence leaves many asking: "Why do I get so hot when I sleep?" Understanding the reasons behind this nocturnal overheating can help address the issue and improve sleep quality.

Here at Thrivelab, we're committed to making hormone health accessible and affordable. We understand the importance of a good night's sleep and the role hormones can play in these night-time heat waves. Our team of experts is dedicated to helping you identify and manage potential causes, including those related to hormonal imbalances.

What Does It Mean if You're Overheating at Night?

Overheating at night, often occurring in the form of night sweats or hot flashes, refers to a rise in body temperature that disrupts sleep. This phenomenon isn't just about being warm — it’s about being unbearably hot.

The sensation can range from mild warmth to severe heat, sometimes accompanied by excessive sweating that soaks your pajamas or sheets. This sensation can occur even in a cool room and is typically unrelated to environmental temperature.

Overheating during sleep can impact sleep quality, leading to sleep disruptions and even insomnia. We spend roughly a third of our lives sleeping, so disruptions like these can significantly affect our overall well-being. 

Quality sleep is not merely about the number of hours spent in bed — it's also about uninterrupted, deep sleep stages. When your body temperature spikes, it can disrupt these vital cycles, leaving you feeling less rested and impacting your day-to-day performance.

Moreover, nocturnal overheating can potentially signal underlying health issues, including hormone imbalances or certain medical conditions (more on that later). It's important not to dismiss these hot flashes but instead to understand their causes and seek appropriate solutions.

Our nurse practitioner Katie Jo recently described hot flashes as “a roller coaster ride where you may be high one day, low the next day as the body tries to adjust. So the sleep is huge, hot flashes during the day and at night.” We understand how overwhelming this can feel — which is why we’re here to help.

8 Common Reasons You Get Hot When You Sleep

It's crucial to understand that nighttime overheating can stem from various sources. From hormonal changes to diet, multiple factors can disrupt your body's temperature regulation during sleep. Once you identify what’s causing your hot flashes, you can take steps to solve the problem.

Hormonal Changes

As we mentioned earlier, hormonal fluctuations, particularly those experienced by women undergoing menopause, can significantly impact body temperature. Decreasing levels of estrogen can trigger hot flashes and night sweats, which are common symptoms of menopause. These episodes can cause a sudden feeling of warmth, usually in the upper body, leading to overheating during sleep.


Hyperthyroidism, a condition where the thyroid gland overproduces thyroid hormones, can also lead to night sweats. These hormones regulate the body's metabolism, so an overactive thyroid can speed up your metabolism, leading to an increased body temperature. This can result in excessive sweating and a feeling of heat during sleep.

Anxiety and Stress

Stress and anxiety can affect your body in various ways, including increasing your body temperature. When you're anxious or stressed, your body releases cortisol, causing a spike in heart rate and blood flow, which can raise your body temperature. If stress or anxiety is a regular part of your day, it may be contributing to your overheating at night.


Certain foods and beverages, particularly spicy foods and alcohol, can cause a rise in body temperature. These substances can stimulate heat receptors and dilate blood vessels, causing a temporary increase in body heat. If you consume these close to bedtime, you might find yourself overheating during sleep.


Several medications list night sweats among their side effects. Antidepressants, hormone replacement therapy, diabetes medications, and certain pain relievers can cause an increase in body temperature and excessive sweating during sleep. If you've started new medication and notice night sweats, consult your healthcare provider to discuss potential alternatives or solutions.

Hormonal Imbalance

Hormonal imbalances can affect body temperature regulation. Certain hormones play a crucial role in regulating body temperature, and an imbalance in these hormones can lead to overheating. You don’t have to be in perimenopause to struggle with low estrogen! Here at Thrivelab, we specialize in helping patients understand and manage such imbalances via individualized treatment plans. 

Various Medical Conditions 

Several medical conditions, including infections, autoimmune disorders, sleep apnea, and neurological disorders, can lead to an increase in body temperature during sleep. If you consistently experience night sweats, it might be a good idea to consult with a healthcare provider to rule out any underlying conditions.

Lifestyle Factors

Finally, lifestyle factors such as your room temperature, sleepwear, and physical activity levels can affect your body's nighttime temperature. If your room is too warm or your sleepwear isn't breathable, it can lead to overheating. Also, intense exercise close to bedtime can elevate your body temperature, making it harder to cool down for a restful sleep.

How Can You Manage Overheating at Night?

Overheating at night can significantly disrupt your sleep, but the good news is that there are several strategies you can adopt to manage and reduce this issue. If hormonal imbalances are the root cause, Thrivelab's team of hormone health specialists is ready to guide you through the process of diagnosis and treatment. 

In the meantime, let's look at some practical tips you can implement tonight for a cooler, more restful sleep.

Optimize Your Sleep Environment

Your sleep environment plays a crucial role in your body's temperature regulation. Keep your bedroom cool, ideally around 65 degrees Fahrenheit. Consider investing in a fan or air conditioner to maintain a steady, cool temperature.

Choose Breathable Sleepwear and Bedding

The material of your sleepwear and bedding can significantly impact how hot you feel during the night. Opt for breathable fabrics like cotton, bamboo, or special moisture-wicking materials that can help dissipate heat and reduce sweating.

Mind Your Diet

As we've mentioned, certain foods and beverages can contribute to overheating. Try to limit spicy foods, alcohol, and caffeine, particularly in the hours leading up to bedtime.

Consider a Cool Shower Before Bed

A cool shower before bed can lower your body temperature and prepare you for a night of restful sleep. It's a simple but effective way to combat overheating.

Stay Hydrated

Staying hydrated is essential, especially if night sweats are causing you to lose additional fluids. Adequate hydration can help regulate your body temperature and prevent excessive sweating.

Practice Stress Management

Since stress and anxiety can contribute to increased body temperature, adopting stress management techniques can be beneficial. Techniques could include meditation, deep breathing, yoga, or any activity that helps you relax and unwind.

Try Bioidentical Hormone Replacement Therapy

If you're dealing with those dreaded hot flashes at night, the good news is that there's a solution that might just bring you the relief you've been seeking: bioidentical hormone replacement therapy (BHRT).

BHRT is a natural and personalized approach to hormone therapy that uses hormones identical to those produced in your body. By restoring hormonal balance, BHRT can effectively alleviate the frequency and intensity of hot flashes, allowing you to enjoy more restful nights.

When it comes to seeking professional guidance and support for BHRT, Thrivelab is here to help. We understand that each individual is unique, which is why we focus on getting to the root cause of your hot flashes and tailoring a treatment plan specifically for you.

To learn more about how BHRT can work for you, schedule an appointment with one of our providers.

Your Path to Cooler Nights

Overheating at night can significantly disrupt your sleep and, consequently, your quality of life. However, by understanding the potential causes and implementing practical strategies, you can take control of this issue and start on a path toward cooler, more restful nights.

Hormonal changes, certain medical conditions, lifestyle factors, diet, and medications can all contribute to overheating. If hormonal imbalances are the root cause, targeted hormone therapies can provide relief. It's essential to listen to your body and seek professional help if you struggle with persistent overheating during sleep.

At Thrivelab, our team of specialists can help you understand and manage potential hormonal causes behind your night sweats. We believe in the power of personalized treatment plans, comprehensive education, and patient-provider partnerships.

So don't let night sweats disrupt your well-deserved rest. Consider Thrivelab for personalized hormone health plans. We're here to guide and support you every step of the way on your journey toward better sleep and overall well-being. 


  1. Hot Flashes and Night Sweats | NCBI Bookshelf
  2. We Spend About One-Third of Our Life Either Sleeping or Attempting To Do So | NCBI Bookshelf
  3. Hyperthyroidism (Overactive Thyroid) | NIDDK
  4. The Impact of Stress on Body Function: A Review | PMC
  5. What Cools You Down, and What Heats You Up | The Seattle Times
  6. Common Drugs/Medications Known to Cause Diaphoresis Listed by Therapeutic Class | Sweat Help
  7. Fever, Chills, and Night Sweats | NCBI Bookshelf
  8. Bedroom Environment: What Elements Are Important? | Sleep Foundation

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