Hello and welcome to the forum
I notice that you say you have Crohns disease and UC, but I wonder if you mean you have Crohns Colitis? It is quite common that people get mixed up and think they have both Crohns and UK when in reality what they mean is they have Crohns in the colon. Colitis is just the general term for inflammation in the colon and can be used to describe a number of conditions. If you are unsure, it would be worth asking your consultant to clarify what your condition is, as sometimes they forget that this sort of language isn't usual to us.
In terms of diet, there isn't really a straight answer I'm afraid, some people find following a specific diet helps them and improves their symptoms while other people tend to find that its about just eliminating specific foods that are a problem for them as an individual. In general, the advice tends to be to go for low fibre, when I was first diagnosed, I was told to eat lots of protien like lean chicken and to try and eat little and often rather than eating big meals in one go. I was also told to try and eat high calorie because I was quite a way underweight. You can check out our diet section for more information on the specific diets some people have tried, but I found the best way to see what worked for me was to keep a food and symptom diary. I made a note of my symptoms before I ate, and then kept a diary of the food I had and whether the symptoms got worse (or better maybe) after eating it. I gave each food 2-3 goes before eliminating it because sometimes just eating or drinking in general caused pain rather than it being a specific food.
As for sleeping, you probably will find you don't quite have the energy you used to, partly because you're not sleeping properly but also because chronic illnesses use up a lot of the bodies energy reserves. Your body is fighting a constant battle against itself and trying to heal your guts at the same time. Steroids also disrupt sleep, so you might find that you sleep a bit better when you've come of them.
In terms of not getting up for bowel movements during the night, some people find that if they stop eating by say 6-7pm then they don't get up but that doesn't work for everyone. You might find that it settles down when things are better controlled, and starting a long term treatment might help this.
For general advice, listen to your body, if you need to rest then rest, report any new or worsening symptoms to your medical teams and do not let them brush you off. Try to read up on your condition and your treatments as much as you can, but be careful of Dr Google (lots of scare stories and incorrect information).
Ideally you should start your new treatment before you finish the course of steroids, this is because some treatments take a few months to really start to work and get to theraputic levels in the body, so it might be worth asking your team if they plan to do this. If you're taking an immunosupressant medication like azathioprine (imuran) you'll need regular blood tests to make sure that your liver and kidneys cope ok with it and you'll need to be careful around infections, you should also be offered a flu jab when on these medications.
If you have any more specific questions or anything is concerning you, please dont hesitate to ask, we don't have all the answers, but we've all been where you are now and understand how difficult it is when you're newly diagnosed
