I've been very surprised, too, Brody... even the couple of days that it's been in the 90s and we didn't remember to put ice bottles out, or we weren't here to do so, they've all been fine. The one time that Thumper overheated was before the rabbitry was built. Since they've been in the rabbitry, we've had no problems. Those two times, I was afraid to round the corner to check on the rabbits (one was yesterday - we were gone longer than I expected). But when I got there, everybody's heads were up, and when I went in, they were all fine and responding like normal! I'm sure it helps that the rabbitry gets some shade on the roof in the morning, but that's mostly gone by noon. I can remember only two days in the last several months that were not in the 90s or around 100!
How'd your bunny do overnight, CH?