If your dog is healthy and between the ages of 2 and 7 you could try to increase his activity levels using the TRIMdog Weight Belt. check out it on ebay or at TRIMdog.com. It works pretty well.
Oct 18, 2008 Rating
Reasons for Dog Restlessness by: Donna - dog-beds-n-beyond.com
There could be many reasons for this.
First, Identify the Problem.
You didn't mention your dog's age. If you have an older dog, it is not uncommon for senior dogs to become restless at night. Like us humans as we age there is a need to urinate or defecate more often. Other causes may be a change of appetite, pain (possibly from arthritis), neurological condition or a loss of vision or hearing.
Any medical condition contributing to the restlessness should be treated.
If you have a puppy, your dog may miss the noise and warmth of a litter. Dogs are creatures of habit a change of a sleeping situation may be the problem.
If something stressful has recently happened to your dog, maybe this may be an issue that needs to be addressed.
Your dog may not be getting enough exercise during the day. Depending on the breed of your dog, at least an hour of cardio a day is needed and some breeds need more.
Make sure your pet is not sleeping all day because that will definitely be a problem for you at night.
Try feeding your dog early evening. Dogs do get an energy rush after they eat. If you are in the habit of feeding your buddy late at night, that could cause the restlessness.
I have heard that a lavender scent will put a dog to sleep.
If you feel that it is stress, you may want to try Melatonin for your dog or "Comfort Zone for Dogs" which comes in a spray for misting the bed or a plug-in.