Hi Vonnalan. Is your mum possibly depressed or anxious?
GP started mum on Mirtazapine about three weeks ago for depression, maybe a bit longer now, I have found that it makes her sleep a lot, maybe too much this weekend she was more asleep than awake. Having said this she has become a lot calmer the last couple of days and is eating a little more so thats good news. She is on 15mg which does aid sleep, it takes a few weeks though to get the full effect for depression, 30mg is mainly for depression and anxiety and less for sleep so may take her up to that level at some point if the GP agrees. This may not be the right drug for everyone of course but you could discuss this with your GP.