Help advice needed going away

[Foxy2702]

Need advice, going away for 6 days, not a problem for most of my settled oncidiums and phals and dendrobiums as they have good roots systems and well-watered should be ok for 6 days.
Problem will be my rescue cattleya, it's just started sprouting roots, so have been only misting in the morning. The same is my rescue dendrobium, no roots in media just tiny nubbins emerging. How do I keep them moist enough for 6 days? Really would not like to lose them now. Please, please help

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