And yes, it could be the start of menopause, or it might just be you are a little over stressed. And Dos Babe, sleep problems can become severe during menopause. My husband has been diagnosed with sleep apnea and has taken prescription drugs which haven't helped. Hypnotherapy might help, but usually there is a physical reason that needs attention. For example, a good solution uses a device called a CPAP for continuous air pressure machine.
Apnea can be a serious disorder.
It depends on the cause. My book does have many practical and useful suggestions and information. Well, the biological rhythms are at their lowest stage of your life the hormonal changes taking place will disrupt the well-0established rhythms of the past. It's a difficult and necessary adjustment. You can try using herbal supplements, but it will be trial and error.