Someone who has extremely dry hands with many areas of cracked skin and it is hard for them to pour water on there hands to wash in the morning. Do they have an eitzah of sleeping with a glove and not washing their hands at all? Or perhaps then washing the glove over the hand? Is there any problem, what’s the eitzah? What are the sources?
There is a dspute among rishonim (the Rosh and the Rashba) concerning the reason for netilas yadayim: Is it on account of hands touching unclean places in the body (Rosh), or is it on account of ruach ra’ah that rests upon hands during the night (Rashba).
Wearing gloves at night helps for the former (unclean hands), but not for the latter (ruach ra’ah), for which there is no substitute for washing one’s hands.
Halachic authorities are stringent for both opinions, and therefore one must still wash hands.
If the majority of the hand is washed, and some is covered in plasters, this remains fine, provided the plasters are not a chatzitzah (the wearer intends them to stay).