Sage is actually hallucinogenic - so use with caution please!!!! Like many so called 'natural remedies' there can be side effects and contraindications so I think one should always seek professional advice before using botanical or herbal remedies. Many of our most powerful drugs come from botanical sources.
The problem with taking any herbal/botanical remedy in the peri meno stage is the inability to know whether it is working or not. Our hormones are fluctuating constantly in the peri stage so flushes and other meno symptoms will come and go, giving the impression that remedies are sometimes working. We often read from women on MM that have tried a particular remedy and it seemed to work for a while and then didn't - this would have been the hormone fluctuation and nothing to do with the remedy. I have spent a fortune on so many remedies with no real benefit - I should have spent the money on a holiday as it would have done far more good.
Practical measures e.g. light bedding, keeping the bedroom cool etc can be far more effective but if the sweats are bad and really effecting your sleep then HRT is the only real option. Dg x