Females often get hot at night due to hormonal fluctuations from menopause, pregnancy, or the menstrual cycle, which disrupt the body's internal thermostat, causing hot flashes and sweats. Other common reasons include a warm sleep environment, heavy bedding, certain medications (like antidepressants), stress, anxiety, infections (like flu or COVID-19), or conditions like sleep apnea or hyperhidrosis.
Waking up overheated at night can be due to many factors such as warm bedding or clothes, hot flashes, certain medications, or in some cases, a medical condition. People maintain a fairly consistent body temperature during the day which drops at night by around 1.8 degrees Fahrenheit.
Causes: In women, night sweats are often linked to hormonal changes such as perimenopause, menopause, pregnancy, or postpartum, but can also be caused by stress or anxiety, infections, medications like antidepressants, or underlying health conditions like sleep apnea or acid reflux.
Feeling hot at night isn't random—your body, hormones, sleep stage, and bedroom setup all play a role. Your core temperature is designed to drop at night, but warm rooms, heavy bedding, or hormonal shifts can throw things off and trigger overheating.
Turn the Thermostat Down or Use Fans
Lowering the room temperature before bedtime helps create a better sleep environment by supporting your body's natural cooling process. Setting your thermostat between 68 and 72 degrees or using a fan can reduce overheating at night and improve sleep quality.
At night, during REM sleep, your brain (your hypothalamus) stops regulating body temperature. During this time when your body's innate ability to thermoregulate, or maintain your body temperature, is affected, the need for ideal external temperatures increases.
The 3-2-1 bedtime method is a simple sleep hygiene strategy: stop eating 3 hours before bed, stop working 2 hours before bed, and stop using screens (phones, tablets, TVs) 1 hour before sleep, helping your body transition to rest by reducing stimulants and digestive load for better sleep quality. A more detailed version adds 10 hours (no caffeine) and 0 (no snoozing) for a 10-3-2-1-0 rule.
On the other end of the spectrum, an overactive thyroid called hyperthyroidism can cause you to feel hot. When the body produces too many hormones it can affect the regulatory system and cause you to overheat.
Your brain Never Stops – Especially During Sleep
As WebMD notes (1), while your body rests during sleep, your brain remains as active as ever, recharging itself and controlling a number of bodily functions while you snooze.
Yes. Anxiety can raise body temperature and make you sweat or breathe faster. What causes heat intolerance during anxiety? Your body releases adrenaline, raising heart rate and temperature.
The first signs of perimenopause often involve changes to your menstrual cycle, such as irregular periods (longer, shorter, heavier, lighter, or missed periods), alongside common symptoms like hot flashes, night sweats, sleep problems, mood swings (anxiety/irritability), and vaginal dryness, all due to fluctuating estrogen levels. Other early signs can include forgetfulness, brain fog, changes in libido, headaches, sore breasts, or increased joint/muscle pain.
These familiar symptoms of menopause appear in most women around age 50. But if they arise before age 40—which happens for about 1 in 100 women—it's a sign that something's wrong. Early symptoms like these could be a sign of a little-understood condition called primary ovarian insufficiency (POI).
Night sweats, like hot flashes, are often related to hormone changes that make it harder for your brain to regulate your body temperature. Night sweats are common in menopause, perimenopause, pregnancy and (in some cases) at certain points during your menstrual cycle.
7 Possible Reasons You're Sleeping Hot
People who get hot while sleeping may have trouble staying comfortable. They might sweat a lot, toss and turn, and have trouble sleeping. To sleep better, hot sleepers can try using lighter bedding, adjusting room temperature, or using cooling accessories.
Sleep occurs in stages (from one to four). It is important that we pass through all of these stages. It is hard to say which organ goes to sleep first but we do know that our muscles relax and our heartbeat reduces during the second stage.
The koala is the animal that sleeps approximately 90% of the day (20-22 hours), a necessity due to its low-energy eucalyptus diet requiring intensive digestion, making it the ultimate champion of sleep in the animal kingdom, followed closely by sloths and bats.
Yes, the Navy SEAL sleep trick (an 8-minute power nap with elevated legs) is a real technique for quick rest, popularized by former SEAL Jocko Willink, that helps improve alertness and reduce fatigue, though its effectiveness depends on individual relaxation skills and it's not a substitute for full nighttime sleep. The method involves lying down, elevating your feet above your heart (on a chair or couch), relaxing facial muscles, dropping shoulders, and clearing your mind for about 8-10 minutes to promote relaxation and blood flow, preventing grogginess.
Common signs
THYROID BELLY - CAUSED BY EXCESS OESTROGENS An increased production of oestrogen hormones seems to favour the accumulation of belly around the waistline and on the belly, causing the so-called Thyroid belly.
For thyroid health, the "one thing" to focus on daily is a source of iodine, found in dairy, eggs, or seafood, and selenium, best from a few Brazil nuts, both crucial for hormone production, but a balanced breakfast with protein, fiber, and healthy fats, like eggs with spinach or oatmeal with berries, provides comprehensive support, while avoiding excessive iodine or simple sugars is key.
My personal routine is get ready for bed at 10pm (I sleep a lot so this can seem quite early), which involves: *taking meds *brushing teeth *unplugging everything in the house *Tidying room *preparing bags for the next day (although this could be part of a morning routine too) *getting into pyjamas *hanging clothes up ...
Signs of poor core sleep (deep, restorative sleep) include waking up foggy, daytime fatigue/energy crashes, poor concentration, irritability, frequent illness, memory issues, and mood swings, indicating your brain and body aren't fully repairing and consolidating memories. You might also experience increased sugar cravings, slow muscle recovery, and a weakened immune system.
In his piece, he revealed that through his years of research, he's found that rumination is the biggest thing that causes poor sleep. He says that being worried about something at night has affected his own ability to fall asleep.