My 185lb Mastiff LOVES it. She just got it so she is getting use to positioning herself in it but it’s plenty big. Actually it’s perfect. My dog is quirky and not fond of new things but she got right in this bed and is super comfy. She is snoring away :) It’s also well made and comes with a very supportive memory foam. It was expensive and I searched a long time for a good bed for her and I feel I spent my money wisely. This is the largest size bed and it fits a giant breed well. The bed also arrived right at my doorstep 5 days early. Strongly recommended and worth the price.