hi by fever do you mean sweaty nights i think your find its a common thing amongst men and if you read up about it your find men do sweat more than women. perhaps your husband is like me some night you could float me out of the bed never anything wrong with me its just the way i'm built could be the same with your hubby. end of the day we just sweat at nights. do hope this helps. good luck
my husband gets fevers a lot more often than me when he has a cold. fever very rare for me. why? . he gets sick a bit more frequently than me too and also had about 30 surgeries as a pre-teen for barrett's oesophagus but has been cleat of that for almost 20 years. he does have higher levels of stress and anxiety in daily life than me though.