There is a possibility the dryer is not drying due to the condition of the venting hose, and if you are getting proper air flow. If air is impeded in its pathway out of the dryer, or if there is a blockage in the venting hose, it could reduce the rate at which clothes are drying in your dryer. For electric dryers a simple test for air flow is to remove the vent. Turn the dryer to auto dry and run a wet load. If the dryer dries like it should you will need to check the vent. This will produce a large amount of humidity and possibly lint, so if you have a window I recommend opening it. If you are unable to clean the vents yourself, I recommend having a professional to clean the vents to clear any blockage or a technician to diagnose and repair the dryer.