@Anonymouse1000 in chinese medicine there is something called the chi cycle and it looks something like this:

Each time window represents when an organ in your body becomes active. If you can check which time window you are waking up in it will indicate an organ of your body needs healing. For example waking between 1am and 3am is to do with your liver and you may like to explore healing your liver. I usually get acupuncture or take herbs and do detox.
Another thing you can do is something called 4-7-8 breath. I learned it from an online sleep doctor on you tube. After you wake up your heart rate goes up and it can be very difficult to settle yourself back to sleep. Keep lights off in your house as light will stop your melatonin production and keep you awake and if you need to go to the bathroom move slowly with eyes 9/10ths closed and go back to bed. Its not advised to do activities around the house.
Then do 4-7-8 breath: inhale 4 four count, hold for 7 count and exhale through pursed lips for 8 counts will lower your heart rate and you will get back to sleep.
If you want more information on the chi cycle there is a book called The Perfect Day Plan by Jost Sauer and by following the chi cycle during the day and night you can reset your body clock. Its a great little book and there are easy actionable steps you can begin to use straight away. The book can be read in a weekend.
If you are worried about tripping over in the dark you can get glow in the dark flourescent sticky tape that you can put on door knobs, switches and so forth. I have it and I bought from an Aussie Survival Supplies store. The tape I bought is one of the better quality ones its best to read reviews and all about their manufacture. Mine is used in the defence forces so its a quality reliable tape.