Hi there!
I'm a newbie and have just started HRT tablets so I can't give advice on whether upping your dosage might help, but I wanted to let you know that I have had similar sleep issues for a while now, it became very severe and led to menopause being ruled in as the culprit after a long list of other things were excluded. Whilst I was undergoing tests, out of desperation I tried a herbal tea I came across called Yerba Mate. It has all the benefits of caffeine but without any of the negative effects. I am caffeine intolerant so can't get an energy lift from coffee like other people. This tea has been a life saver for me, it's helped me function during the day (literally prevented me driving off the road from sleep deprived exhaustion), and my sleep has improved too. I also felt like even if i slept through, i was barely asleep, it was the lightest possible sleep and I felt no better than if i'd been awake. 2 weeks into HRT it may well be helping me, but I noticed an improvement in my sleep before I started the patches so I definitely think it's worth a go. I get it from Tea Pigs, just google for their website. I think some supermarkets stock the brand but not necessarily that particular tea so you might be best getting some online. I hope that if you try it it works for you. In terms of the HRT I think it's highly likely that you might need a higher dose, I think it would be worth speaking to your GP about trying a higher dose. One thing I have learned from my menopause research is that everyone is different and dosages sometimes need amending to suit. Good luck.