Small Bedroom Tube Amp

Hi all!  Does anyone have a good recommendation for a small reliable tube or warmer solid state amp for the bedroom?  Would be match it with smaller bookshelf speakers, haven't decided which ones yet.  I want to mellow out music when putting the little one to sleep.

I have my eye on the TubeCube 7, seems small and efficient but want to make sure there aren't any better alternatives.

Thanks!