Family of 5 and a dog sleep very well in our 23.5
Granted three of the five are children, but we all sleep very well. My oldest (10yr old) sleeps in the V berth, and our 6yr old and 3yr old sleep on both settee's. We tried having our 6yr old in with the 10yr old in the V berth, but we heard too much of the "He's touching me", so we changed their sleeping configuration.The 50lb yellow lab is on the sole of the cabin during stormy weather, otherwise we try to have her sleep outside on the sole of the cockpit when we can. Just for a little extra room. However in stormy weather, it still isn’t too bad.My wife and I sleep in the aft berth with no problems. Being the bigger one of the two, I sleep on the starboard side, while she gets the tighter, more claustrophobic side. She does OK with it, and unless she needs to get up to use the rest room in the middle of the night we sleep soundly.Speaking of the facilities, we have yet to anchor out at night with our 23.5. We keep her in the slip so using the rest room is a two minute walk down the finger to the modern facilities. Since my wife tends to be the one that has to get up the most at night, if we ever anchored out in a cove, I guess we would need to move the head to the cockpit for her, otherwise the guys would just go off the swim ladder.Finally, KenKindy1 mentioned the airflow issue. There is virtually none going through the aft berth, so some air flow considerations should be made. We purchased the hatchway screen (found here on this site) and they are wonderful. They keep everything out and cools off the cabin down to a comfortable 70 degrees or so. We sail in a lake that gets up to over 100 degrees easy during the day, so cooling off at night is great. There have been times that my wife sleeps under the covers and comforter to stay warm. Good luck and happy sailing!