Critic Consensus: Doctor Who's effective horror elements and unexpected cliffhanger save "Sleep No More" from being a gimmicky found-footage episode.
Critic reviews for Sleep No More
There is a series of brilliant misdirections at the center of this episode, and the Doctor-usually a master of misdirection himself-doesn't quite seem to see them. "Sleep No More" wants us to think it's about sleep, but... it's about the unconscious.
"Sleep No More" was by turns spine-chilling, dismaying, gut-wrenching and frustrating-but one thing it was not, was boring.
Sadly, the show had very little to offer other than a gimmicky shooting style, making "Sleep No More" feel like the first real misfire of the season.
"Sleep No More" isn't boring or offensively bad, it's just a little underwhelming and the risky found footage format never quite gels. It's not the first time a Doctor Who story has failed to realise it potential, but we can't fault it for trying.
The episode seemed destined to go down as the worst episode of Season Nine so far. Instead, a literal last minute twist all but shifts how the episode should be perceived, elevating the hour from "meh" to a more memorable "oh, damn..."
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