Hair represents your thoughts about something (symbolically it comes from our head...just as thoughts come from our head). The mirror and wood are bringing up your reproductive system and elimination system respectively. 4 represents limitation so the 4-poster bed will be some way that you are limiting yourself where intimacy/sex is concerned. Are you considering children or birth control?

The first dream is asking your to cleanse the influence your mother had on something. Yes I know your grandma shows up in the dream but it's really representing your mother. I'm seeing that your mother's influence has affected your elimination system (bathroom) and maybe kidneys (bottle). You'll know better than me at this point what your ideas of motherhood and intimacy are. Whatever they might be, your dreams are trying to show you that these thoughts are limiting you in some way and also affecting your physical health (elimination system to be sure).

I know it's personal, but if you're curious about this and want to process more, I'm happy to help. I've seen phallic symbols show up in other dreams so your mother must have influenced your views of men or how free you should feel when you're with one, in some way..