Now, there are two parts to this, mainly because with a realistic doll, you're either going to take care of it or sleep with it. When using a sex doll, it is advisable to use a water-based lubricant. It's much easier to clean than silicones, although you could theoretically use silicone if you wanted. These should be used when entering all orifices, to prevent your own skin from tearing.
When it comes to weight on the doll, be sure not to put all of your weight on your hands or wrists. Often they may not be able to hold the weight and they can definitely break if you are not careful. This is more common with silicone than TPE, but you should be careful. If you want to do it doggy style, you should support the torso under it with furniture or pillows.
Next is bathing. It is important that you clean our realistic sex doll every 30 days thoroughly using a warm bath or shower and a little mild antimicrobial soap. You can sit the doll in the water or shower, but make sure you don't let the head or neck submerge, as this can often ruin the texture of the sex doll.
Now, in order to wash the doll's face, you should get a damp cloth and some mild antibacterial soap. You shouldn't dip your head in water to rinse it, but you should do so with gentle strokes, right against the skin. Make sure you get all the surfaces. When you're done, you can use a towel to dry the doll. You don't want to rub it in because it will wear away the skin, but rather use very small clumps to dry the doll off once you clean it.
Wait until the doll is completely cleaned. When this is done, you should get the renewal powder you have and brush it onto the skin. This is used to keep the skin very soft, and like velvet. However, it is important to ensure that you never use a hair dryer or any kind of heat source to dry the doll, as this could melt and warp the skin.