Expert reviewed
Dr Amara Blake, GP & Menopause Specialist
Reviewed for clinical accuracy against current UK guidance.
You fall asleep fine. Then, somewhere between 3 and 4.30am, you're wide awake, hot, alert, and mentally drafting an email you'll never send. If this is new, it isn't your imagination and it isn't a character flaw.
What changes in perimenopause
Fluctuating oestrogen and progesterone affect temperature regulation, the timing of cortisol release, and how easily you return to sleep after a normal night-time waking. Most people surface briefly several times a night; the difference in perimenopause is that you notice it, and then you stay up.
- Night sweats or a sudden internal heat surge just before waking
- A racing, list-making brain rather than sleepiness
- Waking at a consistent time most nights
- Sleep that feels lighter or less restorative overall
What is worth trying first
Start with the boring, high-yield things: a cooler room, layered bedding you can shed without waking a partner, reducing alcohol in the four hours before bed, and a consistent wake time even after a bad night. Alcohol is the single most common reversible contributor women report to us.
"I stopped trying to force myself back to sleep and started keeping a notebook by the bed. Getting the thoughts out took twenty minutes off the wake-up."
When to talk to a clinician
Book an appointment if broken sleep is affecting your safety, mood or ability to work, if you snore heavily or gasp in your sleep, or if low mood has lasted more than two weeks. Sleep changes are common — that doesn't mean you have to accept them.
Sources & further reading
- NICE guideline NG23: Menopause — diagnosis and management
- British Menopause Society, Tools for Clinicians: sleep disturbance
- Baker FC et al., Sleep and Menopause, Sleep Medicine Clinics
Last reviewed 18/06/2026. We review clinical content at least every 12 months.
This article is educational information, not medical advice. If something feels urgent, contact your GP or emergency services.