Eligibility criteria {10}
cognitive or neurological disorders, comorbid sleep disorders, schizophrenia,, dementia, apnea, bipolar disorder, overnight obstructive sleep, alcohol abuse, insomnia, cancer, renal disease, depressive symptoms, Parkinson’s, hypertension, weight loss
OBSTRUCTIVE SLEEP APNEA, RESTLESS LEGS SYNDROME, HYPERTENSION, DISORDERS
The following are the inclusion criteria:Age 18–65 years.In-office BP readings indicating elevated BP/stage I/II hypertension (SBP of 120–150 mmHg or DBP of 80–90 mmHg). Note that participants taking antihypertensive medications will be permitted if stable dose for > 8 weeks and willing to maintain their dose for the 8-week intervention period.Time in bed < 8 h and habitual sleep duration < 7 h via actigraphy at baseline/screening.Smartphone user.Able to read/write English.The following are the exclusion criteria:High risk or presence of moderate to severe comorbid sleep disorders (i.e., obstructive sleep apnea, restless legs syndrome, or insomnia) as assessed by the questionnaires and overnight obstructive sleep apnea at the baseline/screeningResistant hypertension, defined as currently taking > 4 antihypertensive medications or 3 medications and standardized in lab BP > 130 mmHg SBP or 80 mmHg DBP at screeningHistory of cognitive or neurological disorders (e.g., dementia, Parkinson’s, multiple sclerosis)Arm circumference > 50 cmPresence of major psychiatric disorders (e.g., schizophrenia, bipolar disorder), alcohol abuse on screening questionnaire (women > 7 drinks per week and more than 4 drinks on one occasion; men > 14 drinks in 1 week and more than 5 on one occasion), drug use on the NIDA-Modified ASSIST (score > 3), and moderate to severe depressive symptoms (PHQ-8 > 9)Unstable or serious medical illness that would interfere with participation (cancer, renal disease on dialysis)Overnight work of more than 1 × per monthUse of hypnotic or stimulant medicationsSituations that would significantly impact the ability to extend sleep, including overnight caregiving responsibility for children under the age 1 and elderly or disabled adults > 1 × per weekInability to read or write in EnglishPregnancy/desire to become pregnant during the study periodCurrently following weight loss program, bariatric surgery in the past year, or current use of weight loss medications