Reddit mentions of SnuggleHose Cover (For 6 Foot Hose) - Charcoal B13

You can buy hose covers that help with the condensation.

Rainout occurs when warm humid air inside the tube makes contact with the cooler tube wall and forms condensation. As ambient conditions in your bedroom change, as a result of winter versus summer change, it can change when rainout occurs, so it is best to address physical aspects that cause rainout rather than humidity settings. Even if you manage to find a humidity setting that prevents rainout today, you might have to adjust it come fall when bedroom ambient temperatures start to drop.

Position both the cpap machine to be below the level of your bed, and the hose such that the majority of it is also below the level of your head. That way when rainout occurs, it simply runs downhill into the reservoir. A hose holder can be useful to make sure the majority of the hose runs downhill from your head.

You can help prevent rainout by increasing the inside surface temperature of the hose itself by using a heated tube, or increasing the ambient room temperature. Some people like me find that uncomfortable, I like it cold in my bedroom while I sleep and don't like the extra warm air a heated tube can use. Alternatively you can help normalize the temperature of the tube by insulating it with a hose snuggy, or covering it with a blanket.

Lastly different masks seem to be more susceptible to rainout than others. I found that the Dreamwear style masks worked better than others camping (where it tends to be really cold compared to my bedroom so rainout is more likely to occur) because the frame mounted against your head helps heat that portion of the tube.