Perfect Keto vs Eight Sleep: Which Is Better?
We tested both Perfect Keto and Eight Sleep. Here’s the side-by-side on price, ratings, pros, cons, and our honest verdict on which to buy in 2026.
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Perfect Keto |
Eight Sleep |
| Our rating |
7.5/10 |
7.5/10 |
| Price |
$44.99 |
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| Best for |
— |
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| Pros |
- Wide variety of products (MCT oil, exogenous ketones, bars, collagen)
- Available in both powder and pill forms
- No artificial additives, sugars, fillers, gluten, soy, or corn
- Direct-to-consumer model with no MLM
- Founder is a doctor with transparent product commitments
|
- Eliminates nightly thermostat battles with partner
- Durability: no visible wear after 2+ years of heavy use
- Heating/cooling and hardware still work flawlessly
- Sleep tracking data (HRV, respiratory rate, recovery scores) remains accurate
- Quiet, reliable water pump operation
|
| Cons |
- Protein bars may not work well for everyone
- Exogenous ketones only temporarily raise blood ketones (2-3 hours)
|
- High upfront cost paired with mandatory $15-20/month subscription
- Without subscription, becomes just an expensive heated blanket
- Requires periodic water refills and pump maintenance
- Not worth it for people who don't experience temperature issues at night
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Check Perfect Keto price →
Check Eight Sleep price →
→ See the full ranking: The Best Health We’ve Tested (2026)