
I have found that it depends on the individual temperment of the dog when it comes to ease of training, but the RR definetly has some unique personality traits.
I had read some time ago in a book called the Rhodesian Ridgeback today, By Stig Carlson (I beleive) and there was a brief explanation as to the importance of the dog staying close by its master at night to protect them from other animals while they sleep. (in the open plains they needed a dog that would not wander away from them)
I have had several dogs before who even if I wanted to snuggle all night would have been bothered by all the movement and would not stay all night in one spot and would usually get on to the floor on thier own...(goldens and labs) I loved that Brando would spoon all night and he loved every second of it!!! I have never seen a breed that thinks it is a human like an RR!
Admitttedly, he was my first & he was a little over indulged in the loving department and use of the bed from day one. He had still trained quite quickly and was very bonded to me. He does occationally steal food if left out on the counter (but many larger dogs that can reach the counter will do this at some time in thier lives) but the RR is quite a persistant dog at times - but he will leave our meals alone - RR's are very smart & make good use of their brains - so if you keep them engaged and focused they will aim to please...
Zola our 2nd had been in the crate every night - and occationally gets to sleep in bed with us ~ she is hilarious about it and she will jump in and lay down immediately & pretned that she is So fast asleep that she can not hear us come in and try to hide under the covers so she can stay! After a little prompting she gets into her crate and settles in quickly there with no compaints!
None of this is to say that you can not keep yor RR off of the furniture or the bed. It depends on what terms and conditions you set for them in your house. If you and or your family do not care for this activity ~ just do not start letting them behave in any way you do not find appropriate for you! This is the same process with any dog ~ my dad had 4 dogs all differnet breeds & they have always been allowed to sleep on the bed and sit on the furniture. So it is not necessarily a breed specific thing. This practice is not common in my mothers house and that was her rule ~ when my dogs are at her house - they do not get to use the furniture and they usually adapt well, although she recently had brando over night and he slept in the guest bed

This was her boundry and her house has different rules.
I may add that while I let them on the furniture - I have taught them how they are allowed to use it and how not too - nothing has ever been chewed or soiled and they usuallly jump up gently and curl into a ball - and snullge in my our sides every night!!! If you have more than one - a sectional is very helpful in getting everyone some community snuggle sapce!
These boundaries are entirely up to how you condition your dog

Good luck with your decision making process and finding a breed that is right for you. I personally would not have any other breed as my primary companion and if you do decide on a ridgeback - you will love them dearly!!
Melissa