Do you have time to give him enough exercise to tire him out before you leave in the morning. If he retrieves then you do not need to take him for a walk, just throw a tennis ball for 10 minutes. If he does not retrieve start teaching him. Use a "flirt pole" and have him chase the toy you attach to the end of the line. If you get him really tired, a dog will often sleep for several hours.
When he wakes up, stuffed and frozen kongs, rope toys tied to trees on a bungy, plastic water pipe, black flower pots, buried bones or other nice smelly treats, food dispensing toys, plastic milk and cool drink bottles - these are all things that will keep your pup occupied.
Unfortunately, I believe the stuffing in soft toys and dogs beds has been treated by the manufacturers with a dog attractant because I do not know many owners who have not had to clear up that white stuffing at some stage.
Border River Pet Resort