They made it over night, under a fleece. Even had to evict two slugs that found themselves stuck in the builders sand placed around the base of the plants.
What I have done is used some broken hoops to cover them a little differently. I’m a bit worried that the aubergines here will get a bit too warm and damp; inviting more slimers. Now it is rented for ventilation.
Same has been done with the sweet peppers and Nigel.