Quick Answer: Sleep Number’s FlexFit and Tempur-Pedic’s TEMPUR-Ergo both sell three tiers of adjustable base built around automatic snore relief, but FlexFit undercuts TEMPUR-Ergo’s price at every matching tier — $999/$1,499/$1,999 versus $1,599/$2,199/$2,599 (Queen), per each brand’s own current site. The bigger surprise is weight capacity: per Sleep Number’s own support documentation, every FlexFit tier shares one flat 850 lb combined limit, so the cheapest FlexFit 1 already matches the capacity of TEMPUR-Ergo’s priciest ProSmart Base, while TEMPUR-Ergo’s entry Power Base caps lower at 700 lbs. Neither base is covered by its brand’s famous mattress trial.
Both brands lean on a well-known mattress reputation to sell a separate base purchase — and both bases now ship with tech that detects snoring and reacts automatically, a feature this site has covered on each brand’s own review (Sleep Number FlexFit, TEMPUR-Ergo Smart Base) but never compared head-to-head. Here’s what changes tier-for-tier, and a weight-capacity correction this site needed to make along the way.
FlexFit vs. TEMPUR-Ergo, tier by tier
| Spec | Sleep Number FlexFit | TEMPUR-Ergo |
|---|---|---|
| Entry tier (Queen) | FlexFit 1 — $999 | Power Base — $1,599 |
| Mid tier (Queen) | FlexFit 2 — $1,499 | Smart Base — $2,199 |
| Top tier (Queen) | FlexFit 3 — $1,999 | ProSmart Base — $2,599 |
| Weight capacity | 850 lbs combined, all tiers (600 lbs/side on linked King/Cal King) | 700 / 750 / 850 lbs, rising by tier |
| Automatic snore relief | Partner Snore — auto-detected at FlexFit 3 only; manual button on FlexFit 2 | Snore Response — automatic from Smart Base up |
| Massage | FlexFit 3 only (head + foot vibration) | 2-zone from Smart Base; Wave Form + lumbar massage on ProSmart |
| Full warranty coverage (motors/electronics) | 2 years, then 5 years limited | 3 years, then years 4-5 parts-only |
| Headline warranty term | 25 years — frame-only after full coverage ends | 25 years — frame-only after full coverage ends |
| Built by | Leggett & Platt, per Sleep Number's own warranty documentation | Not disclosed on tempurpedic.com |
| Home trial / returns | None — excluded from the 100-night mattress trial | None — "cannot be returned," 90-Night Trial doesn't apply |
Sleep Number FlexFit 2
- Cheapest way to get Partner Snore's one-side lift, though the automatic-detection version of that feature only arrives at FlexFit 3 ($1,999).
- Built by Leggett & Platt and warrantied directly by L&P per Sleep Number's own documentation — see our full Sleep Number FlexFit review for the tier breakdown.
- 850 lb combined weight limit applies to every FlexFit tier, including this one — a real advantage over TEMPUR-Ergo's lower-rated entry tier.
TEMPUR-Ergo Smart Base
- Snore Response activates automatically, no manual button needed — a tier earlier than Sleep Number's equivalent automatic feature (FlexFit 3).
- Adds Sleeptracker-AI sleep insights and a smart alarm, features Sleep Number's FlexFit lineup doesn't offer at any tier.
- 750 lb weight capacity on this tier — 100 lbs below the flat 850 lb limit every FlexFit tier carries. Full specs in our TEMPUR-Ergo Smart Base review.
The weight-capacity correction: an aggregator figure didn’t hold up
While researching this comparison, Sleep Number’s own support documentation turned up a weight-capacity figure that doesn’t match what this site’s FlexFit review previously cited. That review’s September update credited beds.org’s database with a 700 lb combined capacity for the FlexFit 3. Sleep Number’s own support page states something different: a flat 850 lb combined weight limit (mattress plus sleepers) across every FlexFit tier, with a 600 lb per-side limit on the two linked bases used for King and Cal King sizes. The 850 lb figure is corroborated by Sleep Number’s own FlexFit owner’s manuals. We’ve corrected the FlexFit review to match the manufacturer’s own figure rather than the third-party database — a reminder that a spec aggregator and a brand’s own support page don’t always agree, even on a number as basic as weight capacity.
That correction changes the comparison, too: instead of TEMPUR-Ergo’s weakest tier (700 lbs) beating FlexFit’s rating, the real numbers show every FlexFit tier — even the $999 entry model — already matches TEMPUR-Ergo’s most expensive ProSmart Base on this spec. Buyers choosing based on weight capacity alone have little reason to pay TEMPUR-Ergo’s premium for it.
Partner Snore vs. Snore Response: not quite the same feature
Both brands market automatic snore relief, but the mechanics differ in a way neither brand’s marketing spells out clearly. Sleep Number’s Partner Snore exists because FlexFit’s King and Cal King sizes are built as two separate, independently-motorized Twin XL-width bases joined by a bed link — so one side can rise to ease a snoring partner while the other side stays flat and the non-snoring partner stays asleep. It’s a structural feature of how the base is built, not just a software setting.
TEMPUR-Ergo’s Snore Response, per Tempur-Pedic’s own marketing and multiple retailer listings, is described only as raising “the bed” when it detects snoring — we found no documentation stating whether that’s a whole-bed lift or a one-side-only lift on a shared King or Cal King base. If a couple specifically needs one partner’s side to rise without disturbing the other, Sleep Number’s architecture is the only one of the two with that use case explicitly documented; anyone considering TEMPUR-Ergo for that exact scenario should confirm directly with Tempur-Pedic before buying.
Who should buy which
- Buy FlexFit if: price matters more than brand-name massage tech, you want the highest weight capacity at the lowest price, or you specifically need one-side-only snore relief for a shared King/Cal King bed.
- Buy TEMPUR-Ergo if: you already own a Tempur-Pedic mattress, want automatic Sleeptracker-AI sleep insights (not offered by FlexFit at any tier), or prefer the ProSmart Base’s Wave Form massage and dedicated lumbar motor.
- Consider Saatva’s Adjustable Base Plus instead if: warranty depth matters most — it beats both brands with 5 years of full motor/electronics coverage; see our TEMPUR-Ergo vs. Saatva comparison.
- Consider Sven & Son instead if: neither brand’s price fits your budget — see our Sven & Son review for dual massage at roughly a third of FlexFit 3’s price.
The bottom line
FlexFit wins on price and, once Sleep Number’s own numbers replace a third-party aggregator’s figure, on weight capacity too — every tier matches or beats TEMPUR-Ergo’s equivalent. TEMPUR-Ergo pulls ahead on sleep-tracking smarts and massage depth at its top tier, and its Snore Response arrives one tier earlier than FlexFit’s equivalent automatic feature. Neither base comes with a trial, and neither warranty’s “25 years” covers motors past the first few years — budget for the base as a permanent purchase either way. See our adjustable bed brands guide for how both stack up against the rest of the field.