Sleeping with earplugs each night can help your sleep patterns, but may not be the best habit to continue. Ears need a chance to rest each night, and drain any built-up wax. Earplugs do increase the quality of your sleep, and protect you from waking up from loud sounds. Over time if earplugs are used each night, they can push your ear wax far up into your ear, and cause temporary hearing loss. To remove the built up wax, either drops can be used, or you may even have to get the wax removed by a doctor.
Not only can wax buildup be an issue, but ear infections can happen with earplugs. Again, the built up wax causes bacteria to grow in your ear, and if there is an infection this can cause pain and even hearing loss if you do not seek help.