/AI8h ago

Abel founder Daniel Francis says Eight Sleep's predictive temperature algorithm consistently fails to learn his sleep preferences

Story Overview

Abel founder Daniel Francis called out Eight Sleep's Autopilot feature for repeatedly picking the wrong bed temperature despite its biometric sensors and claimed learning over time, turning what should be seamless nightly adjustments into consistent misses.

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Original post
Daniel@growing_daniel#924inAI

Eight sleep uses AI to guess the temperature you’ll want and it’s somehow wrong literally 100% of the time

6:42 AM · Jun 9, 2026 · 20.9K Views
Cold Start

The Data Gap Behind Wrong Guesses

Engineer Paula labeled the issue a classic cold start problem, where the model simply lacks enough early user-specific data to make accurate predictions about sleep preferences.

User Feedback

Hardware AI Limits Surface in User Reports

This single high-profile complaint draws attention to the practical hurdles of reliable personalization in consumer sleep devices, though no wider pattern or official response has been established yet.

Sentiment

Some users called the Eight Sleep AI temperature failure reports impressive while others criticized the app as unreliable trash that fails to handle basic sleep preferences.

Pos
52.5%
Neg
47.5%
22 comments with sentiment.
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“paula”@paularambles

classic cold start problem

Daniel@growing_daniel

Eight sleep uses AI to guess the temperature you’ll want and it’s somehow wrong literally 100% of the time

7hViews 5.6KLikes 90Bookmarks 1
Daniel@growing_daniel

@paularambles Nice one Paula

“paula”@paularambles

classic cold start problem

7hViews 729Likes 7Bookmarks 0
Vicky@vicky202526

@gkarbo252988 @growing_daniel Aha…👇

6hViews 34
Willie@wllottnwldr

@growing_daniel The optimal sleeping temp is 67°F

4hViews 19

@grok would you take a guess at what temperature he wants right now, just give it a shot, it’s 37 minutes since he posted that tweet, take a guess, and educated guess. And I’m not talking about the bed right now, but you could say that temperature as well, guess what temperature he wants right now

7hViews 15
The OC@ONC187

@Liathetrader @growing_daniel @Grok what’s a couch ? 😂

1hViews 4

@growing_daniel Clearly they need Fable tokens

1hViews 228

@growing_daniel It's the most amazing tool I've purchased. I love it. You are always complaining.

1hViews 135
Renaldo Moon Glampers@risruc_habteb

@growing_daniel this is what I do but on Robinhood and without ai

6hViews 8Likes 2

@growing_daniel Artificial General Incorrect

7hViews 74
Cassandra Hartford@SpaceCoastCRE

@growing_daniel so it works exactly as designed

2hViews 54
Natsuki Fujiwara@tsukinofuji

@growing_daniel AI that can pass the bar exam cannot figure out that you run hot

7hViews 14Likes 1
dmsimon@dmsimon

@growing_daniel I have their old offices. Hilarious to see what still shows up in the mail.

6hViews 12Likes 1
Time to Go@grace_za

@growing_daniel It was better in the beginning when it would just ask me to make corrections.

4hViews 6Likes 1

@growing_daniel I have a BedJet which is same. The app might be the worst app I've ever used in my life and 0 updates ever, even in an age where I could easily vibe code an app 10 times better in one business day.

7hViews 21
Hope: A Steen@witlimited

@growing_daniel ..brought to you by the Sirius Cybernetics Corporation.

6hViews 17
Willie@wllottnwldr

@growing_daniel Don’t need AI for this

4hViews 13
Vicky@vicky202526

@growing_daniel Fortunately, you are not in Europe.

7hViews 12
Rick Fletcher@TRFletcher

@jdoliner @growing_daniel Yeah, but the wires have to be different metals. It is so, so technical. Too hard.

59mViews 3Likes 1
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