the vet said that she had to stay in there roughly three hours to let the sedation wear off. I guess she was afraid that she was going to jump on something and hurt herself. I actually tried taking her out of the carrier and putting her in the bathroom, but she was so disoriented that she was trying to jump in the bath tub and I had to put her back. After I put on the fan and my little soothing water fountain and turned off the lights, that calmed her down for a while as well. I would just peep my head in every 30 minutes to make sure she was ok. It was just very difficult seeing her so panicky.