Can you scientifically define the words 'most comfortable'?

We conducted the first double-blind mattress comfort test
to compare Perfect Pressure to all of the highly advertised national brands

Section One

The test results were conclusive !

Perfect Pressure had the lowest average pressure of any of the mattresses tested

See detailed pressure results below

Section One

You deal with pressure all day; let us deal with it at night.

Pressure maps don't lie!

  • No pressures
  • Pressure points
Perfect Pressure

Perfect Pressure pressure map

  • Perfect Pressure
  • Perfect Pressure
  • Perfect Pressure
  • Perfect Pressure
  • Perfect Pressure
  • Perfect Pressure

Serta® pressure map

Casper®

by

48.9%

Tempur-Pedic®

by

23.2%

Sleep Number®

by

37.5%

Sealy®

by

37.0%

Simmons®

by

56.7%

Serta®

by

16.0%

DISCLAIMER: The above pressure maps represent 7 of the 175 readings taken during the test. They should only be evaluated in the context of the entire double-blind test as reported by Dr. Black. These pressure maps represent an example of a favorable portion of the test with one of the test participants. Other maps with different participants might have different results.

Section One

The Double Blind Mattress Comfort Test

Testing Objectives

How do you define 'comfort'? All mattress companies claim that their mattress is the most comfortable, so how can anyone objectively decide?

The purpose of this test was to measure the pressures created by a person's shoulders and hips on the various specific mattresses tested based upon the permise that lower pressures can result in less nightly tossing and turning which disrupts peaceful sleep. In other words - less disruptive sleep means 'more comfortable'.

  • MATTRESSES TESTED
    All mattresses tested were TWIN size.
    Perfect Pressure, 10 inch ($850-Queen Price)
    Tempur-Pedic Cloud Supreme, 11.5 inch ($2499 - Queen Price)
    Sealy Posturpedic Knighton, 13.5 inch ($1400 Queen Price)
    Simmons Recharge 1000, 12 inch ($1400 Queen Price)
    Serta iCloud Savant Everfeel, 11.5 inch ($1575 Queen Price)
    Select Comfort P5, 11 inch ($2299 Queen Price)
    Casper, 10 inch ($85O Queen Price)
  • TESTING EQUIPMENT
    BodiTrak BT 3510 from Vista Medical http://www.boditrak.com/estore/product.php?product...
  • TESTING LOCATION, DATE AND ENVIRONMENT
    The tests were conducted on 4 days during a 7-day period at the Sheraton Palo Alto from Oct. 15 to Oct. 22, 2015.
    Space environment temperature was maintained between 68 and 72 degrees during testing and the humidity was recorded.
  • TESTING PROTOCOL
    Dr. Black did not choose either the test equipment used or the specific mattresses that were tested nor does he express an opinion on the results. Stanford University was not involved in the test nor do they endorse the mattress.
    All mattresses were covered with a fitted-sheet such that the test coordinator did not know which results were for which mattress brand and the 4 participants never knew which mattresses they were lying upon.
    Two woman, weighing 120 lbs. and 170 lbs., and two men, weighing 169 lbs. and 210 lbs., were the human test participants.
    A non-human ‘test jig’ was also used as a ‘participant’ to eliminate the inherent irregularities of human testing.
    Each of the 5 participants lay on each mattress 5 separate times on their side. They were asked to try and lie the same way each time.
    Each participant lay on the mattress for 3 minutes before a pressure reading was taken for their shoulders and hips.
    175 individual readings were taken (5 participants x 5 trials x 7 mattresses).
  • TEST COORDINATOR
    Angelica Pritchard, a researcher chosen by Dr. Black, and paid directly by Pressure Perfect for her time, to record all readings according to the protocol developed by Dr. Black.
  • TEST RESULTS
    The results presented herein were averaged as follows:
    The results used a 5-inch x 5-inch pressure map recording area for both the shoulder and hip readings.
    The high and low results of the 5 different readings per participant were eliminated.
    The remaining 3 results were averaged to obtain an average pressure score for each participant for each mattress tested.
    The shoulder and hip average pressure scores were then averaged to obtain the mattresses’ overall pressure score.
    Based on the above, using just the four human participants, the following were the averages:
    Based on the above, using just the non-human test jig, which eliminates the inherent issues with a human participant trying to lie the same way on 5 separate occasions, the following were the averages:

Dr. Jed Black was engaged to develop a proper testing protocol and offer a research assistant to oversee the actual testing.

  • ACADEMIC HISTORY
    Colleges and universities, degrees
    1980-1984
    University of Utah, Salt Lake City, Utah, BA, Psychology & Chemistry
    1984-1988
    University of Utah, School of Medicine, Salt Lake City, Utah, Medical degree
    Scholarships and honors
    1984
    Summa cum Laude, Phi Beta Kappa, University of Utah
    1988
    Honors in Internal Medicine, Honors in Psychiatry, University of Utah School of Medicine
    Post-doctoral and residency training
    1988-1989
    Internal Medicine Internship, Department of Medicine, Yale University at Norwalk Hospital, New Haven and Norwalk, Connecticut
    1989-1992
    Clinical Neurosciences Residency (Psychiatry), Departments of Psychiatry and Neurology, Yale University, New Haven, Connecticut
    1992-1993
    Sleep Disorders Medicine Clinical Fellowship, Stanford University School of Medicine, Stanford, CA
    1993-1994
    Sleep Disorders Medicine Clinical Research Fellowship, Stanford University School of Medicine, Stanford, CA
    Boards
    1994
    Diplomate, The American Board of Psychiatry and Neurology, #39900
    1994
    Diplomate, The American Board of Sleep Disorders Medicine, #657
    Other study and research: Principal Investigator of over 50 grant-funded or industry-sponsored clinical studies (details available on request)
  • EMPLOYMENT HISTORY: ACADEMIC AND NON-ACADEMIC POSITIONS
    1992-1998
    Psychopharmacology Consultant, Alliance for Community Care, San Jose, CA
    1994-1995
    Clinical Instructor, Pulmonary Medicine Division, Department of Medicine, University of California at San Francisco, San Francisco, CA
    09/01/94- 8/31/98
    Senior Research Scientist, Sleep Disorders Medicine Division, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA
    1994-Present
    Director, Clinical Pharmaceutical Trials Section, Center for Sleep Research and Medicine, Stanford University School of Medicine, Stanford, CA
    09/01/98 - 12/31/99
    Assistant Professor, Department Psychiatry and Behavioral Sciences, Stanford University School of Medicine; Acting Director, Stanford Sleep Disorders Clinic
    01/01/00 – 09/01/06
    Assistant Professor, Center for Sleep Research and Medicine, Stanford University School of Medicine; Director, Stanford Sleep Disorders Clinic
    09/01/06 – 03/31/10
    Associate Professor, Center for Sleep Research and Medicine, Stanford University School of Medicine; Director, Stanford Sleep Disorders Clinic (2-year sabbatical 04/01/08 – 03/31/10)
    02/01/07 – present
    Consultant, ApniCure, Inc., Redwood City, CA
    04/01/08 – 11/01/11
    Vice President CNS and Sleep Development, Actelion Pharmaceuticals, Allschwil, Switzerland
    04/01/10 – present
    Consulting Professor, Center for Sleep Research and Medicine, Stanford University School of Medicine
    11/02/11 – 11/01/12
    Consultant, Actelion Pharmaceuticals, Allschwil, Switzerland
    11/02/11 – 11/30/12
    Consultant, Jazz Pharmaceuticals, Palo Alto, CA
    12//01/12 – present
    Vice President CNS and Sleep Research and Development, Jazz Pharmaceuticals, Palo Alto, CA
  • PUBLIC AND PROFESSIONAL SERVICE
    Stanford University:
    1994 - 2008
    Guest Graduate Course Lecturer and Co-director (Biomedical Engineering and Signal Processing – Adaptive Signal processing course), Dept. of Electrical Engineering
    1997
    Residential Education for Chelsea Clinton Ad Hoc Committee
    1997 - 2006
    Resident Faculty, Otero Dorm, Wilbur Hall, Residential Education, Stanford University
    1997 - 2006
    Freshman Academic Advising Program Review Committee
    1997 - 2006
    Residential Education, Wilbur Hall, Otero Dorm, Faculty Advisor for Undergraduate Student Staff Medical Student Sleep Medicine Curriculum Review Committee
    1998 - 2008
    Department of Psychiatry Clinical Quality Assurance Committee
    1998 – 2008
    Course Instructor - Psychiatry Residents (PGY-II, III, & IV) - Psychopathology and Psychopharmacology Courses – Sleep Medicine Section
    1998 – Present
    Course Instructor – Sleep Medicine Fellows - Pathophysiology and Treatment Course
    Civic:
    1996 - 2000
    Boy Scouts of America, Venture Post Leader
    2005 - 2008
    Boy Scouts of America, Venture Post Leader
    Peer-Reviewed Journal Manuscript Reviewer:
    1994 - Present
    SLEEP
    1997 - Present
    Journal of Electroencephalography and Clinical Neurophysiology
    1998 - Present
    Annals of Neurology
    1998 - Present
    Archives of Internal Medicine
    1999 - Present
    American Journal of Respiratory and Critical Care Medicine
    2001 - Present
    Biological Psychiatry
    2001 - Present
    Journal of Psychiatric Research
    2004 – Present
    Sleep Medicine
    2005 – Present
    Journal of Clinical Sleep Medicine
    2006 – Present
    Sleep Medicine Reviews
    1994 – Present
    ad hoc for various journals, as requested
    Scientific Advisor/Advisory Boards/Consultant
    1995 - 2008
    Cephalon
    1995 – 2005
    Orphan Medical
    1997 – 1999
    Wyeth-Ayerst
    2000 – 2005
    Sanofi-Synthelabo
    2000 – 2005
    Sepracor
    2001 – 2008
    Glaxo Smith-Kline
    2001 – 2008
    Neurocrine Biosciences
    2001 – 2008
    King Pharmaceuticals
    2002 – 2008
    Pfizer
    2005 – Present
    Jazz Pharmaceuticals
    2007 – Present
    Apnicure
    2011 – Present
    Actelion Pharmaceuticals