Richard claims: August 15, 2014 at 1:47 am Your compose-up is the best I've encounter; Primarily the warning that it is risky to use chin straps if a person has sleep apnea or nasal congestion. I have both of those circumstances & can vouch that chin straps Undoubtedly never perform if 1 has possibly sleep apnea or nasal congestion or each.Traditio