The Sleeper Must Awaken is full of basically well made ambient that does not leave a strong impression. It is a very even layer where nothing much happens, Its tone is basically warm, though a bit clinical, and the album is quite nice as background music. There is some variance, but it's not obvious, and easily ignored if one doesn't concentrate on looking for it. An exception to this is Glimpses of Silver, a fine track that uses far more varied themes (though it, too, is still quite minimalist). The music of Ships on Fire is not at all bad ambient, but I can straight away say that for example Moljebka Pvlse has made several albums' worth of similar, yet far superior soundscapes.

On the other hand, as a free album, the price-to-quality level is quite high here. I therefore recommend at least a look at Glimpses of Silver, if you happen to like minimalist ambient at all.