DreamSweep

DreamSweep™

Your brain clears waste while you sleep. Your mind restores. Same night, different biology.

DreamSweep scores both — every parameter backed by published research.

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Science

  1. Iliff JJ, Wang M, Liao Y, et al. A paravascular pathway facilitates CSF flow through the brain parenchyma and the clearance of interstitial solutes, including amyloid-beta. Sci Transl Med. 2012;4(147):147ra111.
  2. Xie L, Kang H, Xu Q, et al. Sleep drives metabolite clearance from the adult brain. Science. 2013;342(6156):373-377.
  3. Nedergaard M, Goldman SA. Glymphatic failure as a final common pathway to dementia. Science. 2020;370(6512):50-56.
  4. Ohayon MM, Carskadon MA, Guilleminault C, Vitiello MV. Meta-analysis of quantitative sleep parameters from childhood to old age in healthy individuals. Sleep. 2004;27(7):1255-1273.
  5. Berry RB, Brooks R, Gamaldo CE, et al. The AASM Manual for the Scoring of Sleep and Associated Events. American Academy of Sleep Medicine. 2017.
  6. Feinberg I, Floyd TC. Systematic trends across the night in human sleep cycles. Psychophysiology. 1979;16(3):283-291.
  7. Walker MP, van der Helm E. Overnight therapy? The role of sleep in emotional brain processing. Psychol Bull. 2009;135(5):731-748.
  8. Riemann D, Spiegelhalder K, Nissen C, et al. REM sleep instability — a new pathway for insomnia? Pharmacopsychiatry. 2012;45(5):167-176.
  9. Hablitz LM, Vinitsky HS, Sun Q, et al. Increased glymphatic influx is correlated with high EEG delta power and low heart rate in mice. Sci Adv. 2019;5(2):eaav5447.
  10. Fultz NE, Bonmassar G, Setsompop K, et al. Coupled electrophysiological, hemodynamic, and cerebrospinal fluid oscillations in human sleep. Science. 2019;366(6465):628-631.
Privacy Policy

Effective: June 1, 2026

DreamSweep™ is developed by Christina Trojel-Hansen. This policy explains what data the App accesses, how it is used, and your rights.

Data We Access

With your explicit permission, DreamSweep reads from Apple Health:

  • Sleep analysis (sleep stages, bed/wake times)
  • Heart rate samples
  • Heart rate variability
  • Date of birth (for age-adjusted scoring)

How Data Is Used

All data is processed entirely on your device. The App does not transmit, upload, or share your health data with any server, third party, or analytics service.

Data Storage

Scores are stored locally. Deleting the App removes all data. The App does not write to Apple Health.

Third-Party Services

DreamSweep does not integrate analytics, advertising, or tracking SDKs.

Your Rights

Revoke access anytime in Settings > Privacy > Health > DreamSweep. Delete all data by uninstalling.

Children

Not directed at children under 13.

Changes

Updates will be posted at this URL with a new effective date.

Contact

christina.trojel@gmail.com

Terms of Use

DreamSweep provides sleep quality estimates for informational and wellness purposes only. It is not a medical device and does not diagnose, treat, or prevent any condition. Consult a healthcare professional for medical advice.