I have a chronic sleep problem for the past 20 years and have not been to bed for the past 4 years , I suffer from dreadful dreams , I also have a type of nightmare during the day , even though I do not go to sleep. I am constantly visiting clinics for sleep disorders.
My main thing that has helped me through the last 4 years is I try to sit and listen to some soothing music or watch some television , I have headphones on all night ,so that if I have the unfortunate disaster and nod off for a few moments I have something to soothe my mind and hopefully lower my pulse rate .
The problem you might find if you have a cup of Horlicks or the like , you will probably want to go for a wee .The main thing is really try not to wind yourself up, deal with it in a calm and peaceful manner ,no point in waking your partner,you really do not need to have both of you tired and irritable ,I have also stopped driving as you never realise just how tired you really are.
Finally I trust you are able to manage your sleep and all goes well on your Trip of A Lifetime, best wishes to your partner ,remember to post the news when the baby is born . Mr In A Mo