aha, THAT's why you have the candle! Take it with you!
I totally understand that issue, from both sides. The candle will do the job but maybe your mum could also add a torch to her shopping list - it seems a bit of a shame that once she has gone to sleep you are effectively trapped and can't get things you might need. Doesn't help the situation any.
Do you have nightlight plugs? they could help, light the way for you and they wouldn't interfere with your mum's sleeping.
Or, another idea for tomorrow, get another kettle and keep it in your room so you can make late night drinks for yourself. (obviously need tea/ chocolate/ milk/ mugs/ sugar/ spoon etc as well!)
Anyway sweetness, I have to go to bed now cos the tiredness has suddenly hit and am yawning fit to bust - hope you get some good rest, try the meditation/ relaxation thingies and hopefully you'll drop off while listening to them.
Nighty night, love and light to you all (I think your mum needs it too...)
xxx