I'm on the fence about getting a Kindle. I already own an iPad, which offers a color display, handles PDFs and comics/manga well, and is decent for reading. However, I'm considering a Kindle to improve my sleep and have less distractions. Any thoughts or suggestions?

I'm on the fence about getting a Kindle. I already own an iPad, which offers a color display, handles PDFs well, and is decent for reading. However, I'm considering a Kindle to improve my sleep and have less distractions. Any thoughts or suggestions?