Am I not getting restful sleep when I snore?

Likely Not. Loud snoring, bothersome in itself, can be a sign of obstructive sleep apnea (osa). Osa has been shown to have significant affects on quality of life as well as even a significant increase on mortality. A sleep study will determine if a patient has osa. Loud snoring without osa can be detrimental as well as it can cause a loss of intimacy with bed partners.
Yes. Usually snoring is associated with sleep apnea and then sleep quality is compromised.