[5] Thom Jurek of Allmusic said, "there are no weak moments on X-Dreams, and despite its age, the album still sounds a bit ahead of its time.

"[6] In an article for Flood Magazine, Ad Amorosi wrote: "X-Dreams is stunning stuff that nearly 45 years after its initial moment has lost none of its punch or import.

"[8] Imran Khan, writing for PopMatters, commented: "X-Dreams depicts the endless streams of language found in dreams, a transient moment that has been frozen by the coiled magic of Peacock's words and her uncanny ability to capture an image in sound.

"[9] A reviewer for Head Heritage remarked: "Resigning the instrumentation to a battery of both jazz and rock musicians, her songs are all carefully thought out ruminations regarding love, relationships and general man/woman workings that are astonishingly clear and simple as they are frighteningly insightful.

X-Dreams is a remarkably engaging record, a full-on aesthetic experience that confirms Annette Peacock's stone-cold original status."