Well only if you feel sweaty or smelly. If you have clean underwear on and you have only lay in bed through the night then you should not need to change again. If you have plenty of underwear then change it as often as you like but at least daily.
Yes. You should wear underwear!!
Called a wet dream, your already there. if your a girl though, you should probably seek help.
You should start by wearing hers.
You should change your underwear every day because it promotes good hygiene and also if your underwear is dirty it can irritate your sensitive skin in your pubic area.
Wear pants over top of the underwear.
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It will not harm you, doctors say you should wear loose underwear to increase your sperm.
Under your clothes
It depends on what time you have to get up in the morning; but you should try for 8 hours of sleep at night. b4 theyre kids LOL
Yes they wear underware they have different matrieals probably duhh they arent any different then us they are just Ike people in the states we should wear underware to
plastic or absorbent underwear
Hon, Stop being paranoid, its called "Personal Hygene" Should she be suspicious of you because you shower and put on deodorant every morning?