{ "guide": { "slug": "prophetic-dual-vs-phase", "title": "Prophetic Dual vs Phase Guide", "subtitle": "A buyer guide to Prophetic's lucid-dream ultrasound headsets, their evidence gap, and adjacent neural devices.", "summary": "Prophetic Dual and Phase are compelling but experimental preorders. Dual is the cheaper speculative entry model; Phase is the technically stronger bet because it adds EEG, closed-loop adaptation, and phase arrays. The risk-adjusted answer is to wait for controlled human evidence unless you want to fund first-generation neurotechnology.", "category": { "slug": "neurotechnology", "name": "Neurotechnology", "description": "Consumer and research neurotechnology guides for headsets, sleep devices, EEG, stimulation systems, and brain-computer interfaces." }, "tags": [ "prophetic", "lucid-dreaming", "neurotechnology", "sleep-tech", "eeg", "tfus", "buying-guide" ], "version": "2026-05-03.2", "publishedAt": "2026-05-03", "updatedAt": "2026-05-03", "freshness": "Verified against Prophetic official site, receipts, Terms of Service, Privacy Policy, current adjacent-device product pages, published sleep/lucid/tFUS literature, and current market signals on 2026-05-03. Re-check shipping, price, return terms, clinical evidence, and regulatory status before buying.", "heroLabel": "Neurotechnology buyer guide", "vaultPath": "Research/Technology/Hardware/Prophetic Dual vs Phase Guide.md", "r2JsonKey": "guides/prophetic-dual-vs-phase/2026-05-03.2.json", "thesisCards": [ { "label": "The product", "title": "Two preorders, one evidence problem.", "body": "Dual is the lower-cost ultrasound model. Phase adds EEG, closed-loop adaptation, and phase arrays. Neither has independent public proof yet." }, { "label": "The catch", "title": "Plausible is not proven.", "body": "REM detection, lucid-dream correlates, and tFUS neuromodulation exist; the integrated at-home lucid-dream headset remains unvalidated." }, { "label": "The buy", "title": "Phase is the stronger technical bet; waiting is safer.", "body": "Dual wins price and timing. Phase wins capability. Evidence-sensitive buyers should wait for controlled data or independent reviews." } ], "stats": [ { "label": "Best technical bet", "value": "Phase", "detail": "EEG plus closed-loop adaptation and phase arrays make it more coherent technically." }, { "label": "Risk-adjusted answer", "value": "Wait", "detail": "No public controlled human evidence was found for reliable tFUS-induced lucid dreams." }, { "label": "Entry prices", "value": "$449 / $1,299", "detail": "Official retail prices for Dual and Phase." }, { "label": "Ship estimates", "value": "End 2026 / mid-late 2027", "detail": "Prophetic estimates; its Terms say delivery dates are not guaranteed." } ], "sections": [ { "id": "bottom-line", "eyebrow": "Bottom line", "title": "Do not buy this like a finished sleep gadget.", "body": "Prophetic Dual and Phase are first-generation preorder neurotechnology products. The underlying science is plausible enough to be interesting: EEG can help detect sleep stages, lucid dreams have measurable correlates, and low-intensity transcranial focused ultrasound can modulate brain activity in lab settings. The missing proof is the consumer claim: a comfortable at-home headset that detects the right sleep state, targets prefrontal activity, induces or stabilizes lucid dreaming, and remains safe under repeated use." }, { "id": "quick-answers", "eyebrow": "Fast verdict", "title": "The three answers you probably need", "table": { "columns": [ "Question", "Answer" ], "rows": [ [ "Is it worth buying?", "Usually no, not yet. Buy only if you are comfortable funding experimental preorder neurotech and can tolerate delay, refund, and performance risk." ], [ "Does the tech work?", "The ingredients are real, but Prophetic has not publicly shown enough controlled evidence that its headset reliably induces lucid dreams." ], [ "Which headset is the better buy?", "Phase is the stronger technical bet; Dual is the cheaper speculative entry. For most people, waiting is the best buy." ] ] } }, { "id": "prophetic-models", "eyebrow": "Models", "title": "Dual vs Phase", "table": { "columns": [ "Model", "Official price", "Ship estimate", "Stimulation hardware", "Sensing and control", "What you gain", "Main risk" ], "rows": [ [ "Prophetic Dual", "$449", "End of 2026", "Two ultrasonic transmitters with a Fresnel lens focusing system.", "No integrated EEG or closed-loop system is listed in current product copy.", "Lowest official price and earlier estimated delivery.", "Less adaptive design; if timing and targeting matter, it may be the weaker implementation." ], [ "Prophetic Phase", "$1,299", "Middle to late 2027", "Two multi-element phase arrays.", "Integrated EEG sensors and a closed-loop adaptive stimulation system.", "Better fit to the hard problem: detect sleep state, adapt stimulation, and control ultrasound spatially.", "Nearly 3x the price, later estimated shipping, and still no public proof that the product works." ] ] } }, { "id": "which-buy", "eyebrow": "Buying choice", "title": "Which Prophetic headset is the better buy?", "body": "If the question is purely technical, Phase is the better buy because it includes the pieces that should matter: EEG sensing, closed-loop adaptation, and spatially controllable phase arrays. If the question is risk-adjusted money, Dual is easier to justify because it is cheaper and earlier. If the question is what a careful buyer should do, the answer is still to wait." }, { "id": "buyer-verdict", "eyebrow": "Decision table", "title": "Choose by buyer type", "table": { "columns": [ "Buyer type", "Recommendation" ], "rows": [ [ "Evidence-sensitive buyer", "Wait for a preregistered sham-controlled study or strong independent post-shipment reviews." ], [ "Lucid-dream hobbyist with money to risk", "Consider Dual only as a speculative preorder. The lower price makes the downside easier to justify." ], [ "Neurotech early adopter optimizing for technical probability", "Phase is the more coherent technical bet, but the later ship estimate and higher price add risk." ], [ "Sleep-quality buyer", "Explore Elemind, Somnee, Muse S Athena, NextSense, or Dreem/Beacon before Prophetic." ], [ "Developer or research tinkerer", "BrainBit or OpenBCI may be more useful because they expose EEG data and SDK workflows." ] ] } }, { "id": "technology-evidence", "eyebrow": "Evidence", "title": "What is real, and what is still missing", "table": { "columns": [ "Claim", "Evidence status", "Verdict", "Buyer caveat" ], "rows": [ [ "EEG can detect REM sleep", "Strong general support", "Real", "REM detection is not the same as lucid-dream detection, and consumer accuracy varies." ], [ "Lucid dreams have measurable neural correlates", "Moderate support", "Real in lab contexts", "Signal-verified lucid dreams are rare and noisy enough that robust real-time consumer detection remains hard." ], [ "Low-intensity tFUS can modulate human brain activity", "Moderate to strong support", "Real research area", "Targeting, acoustic dose, repetition, contraindications, and safety envelope matter." ], [ "tFUS can reliably induce lucid dreams", "Weak public support", "Not established", "No strong public controlled human evidence was found for this specific claim." ], [ "Prophetic Dual or Phase works as sold", "Vendor claim only today", "Unproven", "Treat preorder performance as experimental until controlled Prophetic data or independent reviews exist." ] ] } }, { "id": "market-map", "eyebrow": "Alternatives", "title": "Other neural devices worth exploring", "table": { "columns": [ "Device", "Status and price signal", "Modality", "Relevance", "Verdict" ], "rows": [ [ "Prophetic Dual", "Preorder; $449; end-2026 estimate", "Forehead tFUS with two transmitters", "Direct lucid-dream product", "Cheap speculative bet, not proven." ], [ "Prophetic Phase", "Preorder; $1,299; mid-late 2027 estimate", "tFUS phase arrays plus EEG closed loop", "Direct lucid-dream product", "Best Prophetic technical bet, still unproven." ], [ "Elemind", "Available; about $399 plus optional app membership", "EEG-guided phase-locked acoustic stimulation", "Sleep onset and sleep restart", "More practical if your goal is sleep help rather than dream control." ], [ "Somnee Smart Sleep Headband", "Available; about $489 bundle with membership period", "EEG-informed personalized pre-sleep tACS", "Sleep improvement stimulation", "Closest consumer stimulation comparator, but not lucid dreaming." ], [ "NextSense Smartbuds", "Available; launch pricing around $249.99 and regular price around $399.99", "In-ear EEG plus timed sound pulses", "Sleep EEG form factor", "Worth watching for comfort and long-term sleep tracking." ], [ "Muse S Athena", "Available; around $474.99 device or bundle pricing", "EEG plus fNIRS", "Meditation, neurofeedback, and sleep tracking", "Better as a broad neurofeedback/sleep tracker than as a dream-control tool." ], [ "Dreem / Beacon Dreem 3S", "Clinical/research oriented; consumer Dreem 2 mostly unavailable", "Multi-electrode sleep EEG headband", "Sleep measurement", "Best validation lineage, but not a normal consumer lucid-dream buy." ], [ "Neurable MW75 Neuro", "Available/orderable; about $699", "EEG integrated into headphones", "Focus and cognitive-state tracking", "Mainstream EEG comparator, weak sleep relevance." ], [ "BrainBit", "Available; about $499 SDK headband", "Four-channel dry EEG", "Developer EEG access", "Better for experimentation than turnkey dream induction." ], [ "OpenBCI", "Available kits from hundreds to thousands of dollars", "Open EEG/BCI platform", "Research and prototyping", "Best for serious tinkering, not polished sleep use." ], [ "REMspace LucidMe", "Restock claimed for 2026", "Sleep cueing mask rather than neural stimulation", "Direct lucid-dream category", "Interesting direct category signal, but evidence and availability are weaker." ] ] } }, { "id": "proof-needed", "eyebrow": "Proof bar", "title": "What would change the recommendation", "table": { "columns": [ "Needed proof", "Why it matters" ], "rows": [ [ "Preregistered sham-controlled human trial", "Separates stimulation effect from placebo, expectation, and better dream journaling." ], [ "REM and lucidity signal verification", "Shows the device acts during the right sleep state and measures true lucid dreams, not just recall or vividness." ], [ "Dose and targeting disclosure", "Ultrasound safety depends on acoustic output, targeting, session limits, contraindications, and repeated-use exposure." ], [ "Adverse-event reporting", "A consumer sleep device needs a credible safety record, not just comfort language." ], [ "Independent post-shipment reviews", "Real buyers need delivery, setup, comfort, app, support, and outcome data outside Prophetic's own funnel." ] ] } }, { "id": "terms-privacy", "eyebrow": "Fine print", "title": "Terms, delivery, and privacy watchouts", "bullets": [ "Prophetic's Terms describe shipping and delivery dates as estimates, not guarantees.", "The Terms describe a 10-calendar-day cancellation window for a full refund after initial purchase, then a final-purchase posture except for stated exceptions such as Prophetic not bringing the product to market.", "Returns are described as available within 30 days of delivery, with authorization requirements and customer responsibility for return shipping/risk.", "The Privacy Policy covers the website, app, products, and offerings and describes collection of account, payment-associated, communications, survey, event, job, usage, device, approximate-location, and interaction data.", "No public evidence was found that Dual or Phase is FDA-cleared for a medical indication. Treat the product as experimental wellness/dream-enhancement hardware, not medical equipment." ] }, { "id": "cheat-sheet", "eyebrow": "Cheat sheet", "title": "The practical answer", "table": { "columns": [ "If you want...", "Do this" ], "rows": [ [ "The highest chance that Prophetic's mechanism can work", "Pick Phase, but only if you accept higher price, later shipping, and first-generation risk." ], [ "The lowest-cost way to place a bet", "Pick Dual, understanding that it appears less capable and may be harder to validate." ], [ "A sleep product you can use sooner", "Look at Elemind, Somnee, Muse S Athena, NextSense, or Dreem/Beacon instead." ], [ "An EEG platform you can automate and inspect", "Look at BrainBit or OpenBCI." ], [ "The careful default", "Wait for controlled evidence or independent reviews after the first units ship." ] ] } } ], "claims": [ { "id": "dual-price-ship", "claim": "Prophetic lists Dual at $449 with first units shipping at the end of 2026.", "sourceId": "prophetic-homepage", "evidenceType": "official", "confidence": "high", "caveat": "Shipping is an estimate and Prophetic's Terms say delivery dates are not guaranteed.", "guideLocation": "Dual vs Phase" }, { "id": "phase-price-ship", "claim": "Prophetic lists Phase at $1,299 with first units shipping in middle to late 2027.", "sourceId": "prophetic-homepage", "evidenceType": "official", "confidence": "high", "caveat": "Shipping is an estimate and Prophetic's Terms say delivery dates are not guaranteed.", "guideLocation": "Dual vs Phase" }, { "id": "dual-hardware", "claim": "Prophetic describes Dual as an entry model with two ultrasonic transmitters and a Fresnel lens focusing system.", "sourceId": "prophetic-homepage", "evidenceType": "official", "confidence": "high", "caveat": "This is product-copy evidence, not independent hardware validation.", "guideLocation": "Dual vs Phase" }, { "id": "phase-hardware", "claim": "Prophetic describes Phase as using two multi-element phase arrays, integrated EEG sensors, and a closed-loop adaptive stimulation system.", "sourceId": "prophetic-homepage", "evidenceType": "official", "confidence": "high", "caveat": "This is product-copy evidence, not independent hardware validation.", "guideLocation": "Dual vs Phase" }, { "id": "phase-technical-bet", "claim": "Phase is the stronger technical bet because its listed features better match the timing and targeting problem.", "sourceId": "prophetic-homepage", "evidenceType": "inference", "confidence": "medium", "caveat": "This is a buyer-guide inference; it does not prove Phase works.", "guideLocation": "Which Prophetic headset is the better buy?" }, { "id": "shipping-not-guaranteed", "claim": "Prophetic's Terms say shipping and delivery dates are estimates and not guaranteed.", "sourceId": "prophetic-tos", "evidenceType": "official", "confidence": "high", "caveat": "Terms can change; re-check before purchase.", "guideLocation": "Terms, delivery, and privacy watchouts" }, { "id": "refund-return-terms", "claim": "Prophetic's Terms describe a 10-calendar-day cancellation window and a 30-day post-delivery return process.", "sourceId": "prophetic-tos", "evidenceType": "official", "confidence": "high", "caveat": "Return authorization, shipping, condition, and risk details matter.", "guideLocation": "Terms, delivery, and privacy watchouts" }, { "id": "privacy-scope", "claim": "Prophetic's Privacy Policy applies to its website, app, products, and offerings and describes collection of account, device, usage, and interaction data.", "sourceId": "prophetic-privacy", "evidenceType": "official", "confidence": "high", "caveat": "The exact data collected by shipped headset/app behavior may depend on the final product.", "guideLocation": "Terms, delivery, and privacy watchouts" }, { "id": "tfus-real", "claim": "Low-intensity transcranial focused ultrasound can modulate human brain activity in laboratory research.", "sourceId": "legon-2014-tfus", "evidenceType": "lab", "confidence": "high", "caveat": "Lab neuromodulation does not automatically validate a consumer lucid-dream device.", "guideLocation": "What is real, and what is still missing" }, { "id": "tfus-safety-active", "claim": "tFUS safety, dose, targeting, and repeated-use protocols remain important active research boundaries.", "sourceId": "tfus-primer-2024", "evidenceType": "lab", "confidence": "high", "caveat": "The guide did not find Prophetic-specific acoustic output or repeated-use safety data.", "guideLocation": "Proof bar" }, { "id": "rem-detection-real", "claim": "EEG-based REM sleep detection is feasible, but consumer wearable sleep staging varies in accuracy.", "sourceId": "wearable-sleep-review-2021", "evidenceType": "lab", "confidence": "high", "caveat": "REM detection is not the same as detecting lucidity.", "guideLocation": "What is real, and what is still missing" }, { "id": "lucid-correlates", "claim": "Lucid dreams have measurable neural correlates, including frontoparietal and higher-frequency activity patterns in lab studies.", "sourceId": "lucid-correlates-2009", "evidenceType": "lab", "confidence": "medium", "caveat": "This does not by itself create a robust real-time consumer detector.", "guideLocation": "What is real, and what is still missing" }, { "id": "lucid-induction-uncertain", "claim": "The broader lucid-dream induction literature is mixed, and no strong public controlled evidence was found that Prophetic-style tFUS reliably induces lucid dreams.", "sourceId": "lucid-induction-review-2023", "evidenceType": "lab", "confidence": "medium", "caveat": "This is an evidence-gap claim as of 2026-05-03, not proof the product cannot work.", "guideLocation": "What is real, and what is still missing" }, { "id": "tacs-warning", "claim": "Prior electrical-stimulation lucid-dream work includes both positive and weaker follow-up evidence, so stimulation claims need sham-controlled replication.", "sourceId": "blanchette-carrier-2020-tacs", "evidenceType": "lab", "confidence": "medium", "caveat": "tACS is not tFUS, but it is relevant to interpreting stimulation-based lucid-dream claims.", "guideLocation": "Proof bar" }, { "id": "market-thin", "claim": "The closest market alternatives are mostly sleep EEG, sleep stimulation, neurofeedback, and open EEG platforms rather than direct lucid-dream ultrasound headsets.", "sourceId": "prophetic-homepage", "evidenceType": "inference", "confidence": "medium", "caveat": "Inference based on Prophetic's official positioning plus the adjacent official product sources in this guide. New devices may launch or restock; re-check before buying.", "guideLocation": "Other neural devices worth exploring" }, { "id": "regulatory-caution", "claim": "No public evidence was found that Dual or Phase is FDA-cleared for a medical indication.", "sourceId": "fda-general-wellness", "evidenceType": "inference", "confidence": "medium", "caveat": "This guide did not perform a legal regulatory review; it treats the product as wellness/dream-enhancement hardware.", "guideLocation": "Terms, delivery, and privacy watchouts" } ], "sources": [ { "id": "prophetic-homepage", "title": "Prophetic homepage and current product bundle", "publisher": "Prophetic", "url": "https://www.prophetic.com/", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "prophetic-receipts", "title": "Prophetic receipts page", "publisher": "Prophetic", "url": "https://www.prophetic.com/receipts", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "prophetic-tos", "title": "Prophetic Terms of Service", "publisher": "Prophetic", "url": "https://www.prophetic.com/tos.pdf", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "prophetic-privacy", "title": "Prophetic Privacy Policy", "publisher": "Prophetic", "url": "https://www.prophetic.com/privacy_policy.pdf", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "moneycontrol-prophetic-2026", "title": "Inception for sale: Can Prophetic AI's headbands hack your dreams?", "publisher": "Moneycontrol", "url": "https://www.moneycontrol.com/world/inception-for-sale-can-prophetic-ai-s-headbands-hack-your-dreams-article-13899967.html", "accessedAt": "2026-05-03", "sourceType": "review" }, { "id": "legon-2014-tfus", "title": "Transcranial focused ultrasound modulates human primary somatosensory cortex", "publisher": "Nature Neuroscience", "url": "https://doi.org/10.1038/nn.3620", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "tfus-primer-2024", "title": "Transcranial focused ultrasound stimulation of the human brain", "publisher": "Nature Reviews Methods Primers", "url": "https://doi.org/10.1038/s43586-024-00368-6", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "tfus-safety-2019", "title": "Safety review for transcranial focused ultrasound neuromodulation", "publisher": "Brain Stimulation", "url": "https://doi.org/10.1016/j.brs.2019.07.024", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "tfus-safety-2023", "title": "Safety of transcranial focused ultrasound stimulation: a systematic review", "publisher": "Neuroscience and Biobehavioral Reviews", "url": "https://doi.org/10.1016/j.neubiorev.2023.105501", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "wearable-sleep-review-2021", "title": "Wearable devices for sleep staging and assessment review", "publisher": "Sensors", "url": "https://www.mdpi.com/1424-8220/21/5/1562", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "single-channel-rem-2021", "title": "Automatic REM sleep detection using a single EEG channel", "publisher": "Journal article in PubMed Central", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC8136764/", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "lucid-correlates-2009", "title": "Lucid dreaming: a state of consciousness with features of both waking and non-lucid dreaming", "publisher": "Sleep", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC2737577/", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "jns-lucid-eeg-2025", "title": "Neural correlates of lucid dreaming study", "publisher": "Journal of Neuroscience", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC12079745/", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "lucid-induction-review-2023", "title": "Lucid dream induction methods systematic review", "publisher": "Journal of Sleep Research", "url": "https://doi.org/10.1111/jsr.13786", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "frontiers-ildis-2020", "title": "International Lucid Dream Induction Study", "publisher": "Frontiers in Psychology", "url": "https://www.frontiersin.org/articles/10.3389/fpsyg.2020.01746/full", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "voss-2014-tacs", "title": "Induction of self awareness in dreams through frontal low current stimulation", "publisher": "Nature Neuroscience", "url": "https://doi.org/10.1038/nn.3719", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "blanchette-carrier-2020-tacs", "title": "Attempted induction of self-awareness in dreams with frontal gamma stimulation", "publisher": "Consciousness and Cognition", "url": "https://doi.org/10.1016/j.concog.2020.102957", "accessedAt": "2026-05-03", "sourceType": "lab" }, { "id": "clinicaltrials-nct07190287", "title": "Wearable EEG-guided tFUS REM sleep restoration and enhancement study", "publisher": "ClinicalTrials.gov", "url": "https://clinicaltrials.gov/study/NCT07190287", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "fda-general-wellness", "title": "General Wellness: Policy for Low Risk Devices", "publisher": "U.S. Food and Drug Administration", "url": "https://www.fda.gov/regulatory-information/search-fda-guidance-documents/general-wellness-policy-low-risk-devices", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "fda-ultrasound-warning", "title": "Do not use unauthorized ultrasound medical devices safety communication", "publisher": "U.S. Food and Drug Administration", "url": "https://www.fda.gov/medical-devices/safety-communications/do-not-use-royalvibe-health-cellquicken-or-well-being-reality-ultrasound-medical-devices-fda-safety", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "elemind-product", "title": "Elemind product page", "publisher": "Elemind", "url": "https://elemindtech.com/products/elemind", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "somnee-product", "title": "Somnee Smart Sleep Headband", "publisher": "Somnee", "url": "https://somneesleep.com/products/smart-sleep-headband", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "nextsense-smartbuds", "title": "NextSense Smartbuds", "publisher": "NextSense", "url": "https://nextsense.io/products/smartbuds", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "muse-s-athena", "title": "Muse S Athena", "publisher": "Muse", "url": "https://choosemuse.com/products/muse-s-athena", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "beacon-dreem", "title": "Beacon Sleep and Dreem sleep EEG products", "publisher": "Beacon Sleep", "url": "https://beaconsleep.com/", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "neurable-mw75", "title": "MW75 Neuro", "publisher": "Neurable", "url": "https://www.neurable.com/products/mw75neuro", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "brainbit-sdk", "title": "BrainBit SDK headband", "publisher": "BrainBit", "url": "https://store.brainbit.com/products/brainbit-sdk", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "openbci-shop", "title": "OpenBCI shop", "publisher": "OpenBCI", "url": "https://shop.openbci.com/", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "remspace-lucidme", "title": "REMspace LucidMe", "publisher": "REMspace", "url": "https://remspace.net/", "accessedAt": "2026-05-03", "sourceType": "official" }, { "id": "tomsguide-elemind", "title": "Elemind sleep headband review", "publisher": "Tom's Guide", "url": "https://www.tomsguide.com/wellness/sleep/elemind-review", "accessedAt": "2026-05-03", "sourceType": "review" }, { "id": "wired-somnee", "title": "Somnee Smart Sleep Headband review", "publisher": "WIRED", "url": "https://www.wired.com/review/somnee-smart-sleep-headband/", "accessedAt": "2026-05-03", "sourceType": "review" }, { "id": "sleepfoundation-muse", "title": "Muse S sleep tracker review", "publisher": "Sleep Foundation", "url": "https://www.sleepfoundation.org/sleep-tracker/muse-s-review", "accessedAt": "2026-05-03", "sourceType": "review" }, { "id": "reddit-muse", "title": "Muse user community discussions", "publisher": "Reddit", "url": "https://www.reddit.com/r/Muse/", "accessedAt": "2026-05-03", "sourceType": "community" } ] }, "publicUrl": "https://fieldguides.co/g/prophetic-dual-vs-phase" }