"Wendy Gilbert Companion" by RickerHK has a feature where you can have Wendy sleep in a bed, either as roleplay when you make camp or to heal if she's injured in combat. But RickerHK was limited in how he could make her recognize beds, and had to go with a formlist of all available vanilla beds. As such she would refuse to recognize the bunk beds in the guest room of the bungalow added by "Willow - A Better Companion Experience" by LlamaRCA, since Llama retextured the beds to match the bungalow decor and had to give them new IDs to keep from replacing every bunk bed in the wasteland.

All I've done here is make a patch adding Llama's new bunk beds to the formlist so Wendy will sleep on them. I did NOT add the bed in the main room, as that one is intended for Willow and The Courier to sleep on ;)

As such, obviously, this requires both "Wendy Gilbert Companion" and "Willow - A Better Companion Experience". There should be no conflicts, as it's just a formlist edit. Just to be safe, though, make sure it loads after any appearance patches you have for Wendy or Willow.

RickerHK gives open permission for patches to Wendy, so if there's demand from those who can't figure out GECK I may make other Wendy Bed patches.