Sleep disruption during perimenopause is often written off as "just hormones." It's worth a closer look
Several medical issues can be happening at once: obstructive sleep apnoea (often without the classic snoring), vasomotor or physical symptoms disrupting sleep directly, and insomnia, a learnt and continuing hyperarousal response in bed persisting long after the original trigger has resolved.
Early recognition matters - see Dr Desai's Sleep and Menopuase flyer, part of Flourish Ebook Series