D Dreamz / Competitive Landscape
Research current as of Aug 2026
Competitive intelligence

Twenty-one teams racing
toward the same pillow.

A working comparison of everyone competing for the "help me sleep" dollar — neurostim wearables, sensing-only wearables, smart mattresses, and sleep supplements — team backgrounds, funding, pricing, published science, and product positioning, gathered from public sources and kept current as the market moves.

Side by side

Who's building what

Disclosure quality varies enormously across these twenty-one — a handful are well-documented, VC-backed, even FDA-cleared or publicly-traded companies; others are early-stage, defunct, or simply don't disclose. Confidence is flagged per row in the table below.

ⓘ
Reading "Overlap": the overlap-score chart and column are an editorial estimate of how structurally close each product is to Dreamz's own PPG/motion/temperature-sensing, closed-loop tDCS-style approach — not a measured or independently validated score. Sensing-only wearables (Oura, WHOOP) and supplements score very differently on this axis for very different reasons — see the Method tab.

Sector mix

All 21 companies, by category.

Status mix

Active vs. discontinued vs. acquired/pivoted.

Sector × status heatmap

Where the failures and pivots actually cluster — darker cell, more companies. Single-hue scale; the number is the count.

Companies founded, by year

Histogram — one bar per year. The sleep-tech founding rate has clearly accelerated since 2019.

Disclosed funding, by bracket

Histogram — how many companies fall in each funding range. The gray bar is undisclosed, not $0.

Structural overlap with Dreamz

Editorial estimate, 0–100, per company. Linear axis.

Disclosed funding log scale

USD raised per company, where disclosed. Log scale — Oura and WHOOP alone (~$900M–$979M) would flatten every other bar to invisible on a linear axis.

Team size log scale

Approximate headcount per company, where disclosed. Log scale — spans a 6-person team to a 3,600+-employee public company.

Every field, every company

The full comparison table

Sortable and resizable — see the hint below.

Click a column header to sort. Drag a header's right edge to resize it — layout is remembered on this device.
One page each

Company profiles

Founders and university affiliations, flagship papers and citation counts, product specs, regulatory status, and press coverage — with sources.

How to read this

Method & caveats

This is competitive intelligence for internal product/strategy use, not investment, legal, or medical advice.

01

Company selection

Six companies named directly as Dreamz's closest competitors — Somnee (StimScience), Elemind, Mave Health, Selepu, Tranoo, and DreaminzZz — plus fifteen more spanning the full "share of sleep spend": other neurostim wearables (electrical, acoustic, vibrotactile, light/sound), sensing-only wearables (Oura, WHOOP, Withings, Dreem/Beacon), smart mattresses (Eight Sleep, Sleep Number), sleep supplements (Beam, OLLY), and B2B research hardware (Soterix). Not an exhaustive scan — a working watchlist that grows as new entrants and categories surface. Use the sector filter above the table to narrow to one category at a time.

02

Sourcing

Each fact was gathered via targeted web research (company sites, press releases, Crunchbase/Tracxn/PitchBook, TechCrunch and trade press, Google Scholar / Semantic Scholar for citation counts) with an inline source link on every company's page. Figures without a locatable public source are marked "not publicly disclosed" rather than estimated.

03

"Overlap" score

A 0–100 editorial estimate of structural similarity to Dreamz — non-EEG physiological sensing (PPG/motion/temperature), electrical (tDCS-style) stimulation, and closed-loop personalization. It is not a competitive-threat score, market-share estimate, or measured metric.

04

Confidence flags

Well documented = VC-backed, press-covered, multiple independent sources agree. Moderate/Limited disclosure = few independent sources, some claims are company-only. Very early stage = pre-launch or just-founded; most figures undisclosed by design.

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Volatility warning: funding, team size, pricing, and regulatory status for early-stage companies (Mave Health, Selepu, Tranoo) can change within weeks. Re-verify before using any figure here externally, and treat company-reported clinical/efficacy claims (marked as such throughout) as unverified until an independent peer-reviewed source is found. "Users" figures are almost never independently audited — treat them as a rough signal of traction, not a verified customer count.