Dentures usually feel strange when you start wearing them, but you will soon get used to talking, chewing, and taking care of them. Unlike your natural teeth, dentures are foreign objects that cannot quite duplicate the feel and function of your original teeth. So, you need to be patient as you get used to the sensation.
Many dentists recommend wearing your dentures all the time, at first, including while sleeping so you can adapt to them more quickly. Once you have become accustomed to them, you should start taking them out for 8 out of every 24 hours, usually at night while you sleep, and follow a good cleaning routine.