Night Sweats: How to Sleep Cooler Tonight

For a full guide on selecting fabrics and cuts, read our breakdown of the best sleepwear for night sweats.

3. Layer your bedding and consider active bed cooling

Use multiple light, natural-fiber blankets (such as linen or percale cotton) rather than a heavy down duvet. That way, you can kick off a single layer during a heat spike without waking up freezing twenty minutes later.

For women experiencing severe, frequent nighttime sweats who find ambient room fans insufficient, active bed cooling systems deliver direct convective air beneath the top sheet.

To compare fans, cooling sheets, and active climate units, explore our review of cooling products and bed climate systems.

4. Watch evening triggers

• Avoid alcohol after dinner: Wine and spirits dilate peripheral blood vessels and disrupt sleep architecture, reliably triggering nighttime sweats.
• Limit evening spicy foods and hot beverages: These stimulate autonomic warmth sensors.
• Finish heavy meals 3 hours before bed: Digestion elevates metabolic core body temperature.

What else could cause night sweats?

While perimenopause is the most frequent cause in women in their 40s and 50s, night sweats can also stem from non-hormonal medical conditions:

• Thyroid dysfunction: An overactive thyroid gland (hyperthyroidism) accelerates metabolism and causes excessive sweating, heat intolerance, and heart palpitations.
• Obstructive sleep apnea: Repeated nighttime breathing pauses trigger sympathetic nervous system surges that produce nighttime sweating.
• Medication side effects: Antidepressants (such as SSRIs/SNRIs), steroids, and certain blood pressure medications frequently list night sweats as an adverse reaction.
• Blood glucose dips: Nocturnal hypoglycemia, particularly in individuals with prediabetes or insulin resistance, causes sweating and sudden awakenings.

What actually helps long-term: evidence-graded treatments

While cooling gear improves sleep comfort, clinical trials show that medical treatments are required to reduce the actual frequency of hormonal surges:

Option	Evidence Grade	Clinical Trial Finding
Systemic Hormone Therapy (MHT)	Strong	Reduces night sweats and daytime hot flashes by 75% to 90% in randomized trials. Transdermal patches or gels deliver continuous hormone levels overnight.
NK3 Receptor Antagonists	Strong	Non-hormonal prescription tablets that target KNDy neurons in the hypothalamus, significantly reducing vasomotor episodes [@veozah-prescribing-information, @nams-2023-nonhormone-therapy].
Cognitive Behavioral Therapy for Insomnia (CBT-I)	Moderate	Helps restructure sleep patterns and reduces the distress and arousal that follow nighttime awakenings.
Cooling sleepwear and bed ventilation	Comfort only	Wicks perspiration and prevents trapped body heat; does not prevent the internal hormonal surge.

When to see a doctor and what to ask

If night sweats disrupt your sleep multiple times a week or leave you exhausted during the day, schedule an appointment with your healthcare professional.