Settling in a rescue dog

We have just got a 3 year old boarder terrier rescue dog. We are walking him for approx 2 hours per day and have set him a bed up in the kitchen to sleep. It seems like in his previous home he was not taught to heel on lead or respond to commands. He is motivated by treats and has made good progress on learning sit and we have started to work with him on learning to 'get into bed'. During the day he seems completely comfortable and is very affectionate but when it comes to the night he is crying/barking. We have tried to leave him but as we are concerned for our neighbours we go down to calm him down all he wants to do is play and have cuddles. I know that if we brought him to bed that would solve the problem but that is not an option for us as we want him to be comfortable in his own space. Do you have any suggestions to help with getting him asleep?

One of the flaws of dog ownership is that we get them for our enjoyment but end up trying to figure out ways to entertain them so they won't bug the neighbors or pester us.
   
Dogs who are exhausted will go to sleep at night. Despite his two hours of walking this dog is not tired so you have to run him until he's ragged.
   
Try giving him more activities during the day.
   
If he is a 'digger' a good one is to set up a child's sandbox in your yard, fill it with dirt or sand, bury toys in it and let him go ape.
   
Every day you have to keep re-burying the toys for him to re-dig again, but that tends to keep them occupied.
   
In the dead of winter, you can use snow for this purpose too.
   
In warm weather set up a child's plastic swimming pool. Fill it with water and let him go wild. Be sure to dump the water every night or bugs will breed in it (aside from the fact that your dog may relieve himself in the water).
   
Your goal is to think of activities he can do in your yard by himself. Fetch is great but someone needs to constantly throw the stick and you don't want to spend all of your spare time trying to tire out your dog so he'll sleep.
   
You have a life, too, and it does not revolve around constantly entertaining/tiring your dog so he'll pass out at night and give everyone a break.
   
There's also that old standby, white noise. Sometimes they settle if you switch on a radio or TV, which gives them the aural sensation of your presence.
   
If his sleep space is in a part of the house that is near the street, outside noises may be too stimulating so if this is the case, move him to a dark, quiet room.
   
I am not a big fan of dogs sleeping in anything other than a crate at night. By giving him a bed you are giving him free run of the house at night, when he is unsupervised.
   
Too many bad things can happen.
   
Have you tried crating? Contrary to what you may think, crating is not cruel and recreates the safe feeling of the den for a lot of dogs.
   
Perhaps your dog will feel more secure in a crate and that will help him to settle at night.
   
Crating will also help him to keep from soiling the house at night.
   
Dogs will hold it until they burst before toileting on their beds, so a dog in a crate is very unlikely to potty, while a dog in a bed in the kitchen can hop out, unload wherever he chooses and hop back into bed, secure in the knowledge that his bed is clean and not giving a fig that the carpet is now soaked with his urine.
   
Good luck, hope he's soon sleeping.