I just read this thread for the first time! I'm so glad that Bean is feeling happier now! I was going to suggest making him a 'den' with his carrier but leaving the door open for him. It sounds like he likes to be very cozy at night. I leave a few carriers in each of the rooms that my cats sleep in and I put bedding inside and on top and I usually find half of them cozy as bugs in rugs inside the open carriers each morning. My original reason for leaving the carriers in each of the rooms was in case of a fire, I could quickly put everybody into cages but it's turned out that they love having these spaces to sleep in.
It's great to hear that Bean is being quieter through the night instead of a 'Mexican Jumping BEAN!'