The optional rule on sleeping in armor from Xanathar's Guide to Everything (p. 77-78) states
Sleeping in light armor has no adverse effect on the wearer, but sleeping in medium or heavy armor makes it difficult to recover fully during a long rest.
When you finish a long rest during which you slept in medium or heavy armor, you regain only one quarter of your spent Hit Dice (minimum of one die). If you have any levels of exhaustion, the rest doesn’t reduce your exhaustion level.
Given an elf trance isn't "sleeping", does wearing armor negatively impact the effects of the trance?